Sql Query To Get Column Names And Data Types In Teradata

The table below lists the Teradata Database data types supported by the Teradata SQL Driver for R, and indicates the corresponding R data type returned in result set rows. Some data types have multiple names, these names are considered as equal here. Hi Bill, The records in your first set (without the RecordNumber column) have no column on which you can order the rows. Query to get field name with datatype and size SELECT column_name as 'Column Name', data_type as 'Data Type', character_maximum_length as 'Max Length' FROM information_schema. Controls the SQL insertion clause used: None : Uses standard SQL INSERT clause (one per row). They can enforce data integrity. TableName WHERE ColumnsV. DRIVER CLASS: com. SYSCOLUMNS would look something like this:. Clear answers are provided with How Column Data Types Are Determined in a View? When you define a view, its columns are defined through a list of expressions in the underlying. There is no nice way to do it in SQL2000 (ROW_NUMBER was introduced at SQL2005) - it can be done, but if you have a lot of data it is going to be painfully slow as you have to either generate a temporary table or nest a select if you. exec sp_columns @table_name = 'SalesOrderDetail'; /* Partial results COLUMN_NAME TYPE_NAME SalesOrderID int SalesOrderDetailID int identity CarrierTrackingNumber nvarchar. WITH RECURSIVE : This clause, defines a named query that can refer to itself in the query definition, and in the select statement that the WITH RECURSIVE clause precedes, for the desired result. If we want to sort our Users table by the FirstName column, we'll have to use the following ORDER BY SQL statement:. More on using XML data type in SQL Server: When working with a typed XML column, you must precede each node in the path name with the namespace alias, followed by a colon. In the case of CSV this often happens when editing an EXCEL file and "deleted" columns are exported with every row ending in ,,,,,,,, or similar. sqldf() transparently sets up a database, imports the data frames into that database, performs the SQL select or other statement and returns the result using a heuristic to determine which class to assign to each column of the returned data frame. As a result, your applications will be slow and less scalable. For any specified table, the following PL/SQL produces a small report detailing each column, the type, and any comments:. Here we convert our data from two rows with three columns and a row type discriminator (Currency Category), to one row with six columns where each column name distinguishes the identity of the data. Part 2: Querying an Excel Worksheet Without Header and With Mixed Column Data Type. By leaving out the words WITH DATA from the end of the statement you can create a new table that has exactly the same structure as the original but. Teradata Query Efficiency-Tips. Answer: This is a very popular question and there are multiple ways to get column names of a specific table in SQL Server. Get Table information like Column Name, Data Type, Character length, Default Values etc in SQL Server To get the Table in information in SQL Server, we can use below Query: SELECT * FROM INFORMATION_SCHEMA. BlogTypeID', 'Tags', 'COLUMN'. i want the find howmany values are not null in 7 columns and get the result Eg. COLUMNS where table_name = 'TestTable'. exp_date - table1. Get all Tables with Column Names and Data types from SQL Server Database In this post ,we will generate the script that will return us all the table names with column names and data type of those columns. I wanted to copy data from this Teradata table quickly to SQL Server to do some data reconciliation. Yesterday, I was dealing with a very similar situation and was convinced that I could do all of this in a single query, rather than use query of queries or. Teradata data types fall into categories: binary, character, date, and numeric data. To get all columns, select * from dbc. Teradata interview questions - I. For analysis queries, extracting data from JSON columns can greatly degrade a query’s performance. the table structure of both the tables is different but some fileds are common ( userid,user_name,user_country,city. Community Answers: Another way to see some quick sample data in the table is to use the TOP function, and just select the top several rows from a table. Re: Column Type Data Type clarification. If you just use @SortColumn, you receive: Msg 1008, Level 16, State 1, Line x The SELECT item identified by the ORDER BY number 1 contains a variable as part of the expression identifying a column position. Get field name, data type and size of database table; Get nth highest and lowest salary of an employee; Difference between Stored Procedure and Function in SQL Server; Inserted, Logical Deleted table in SQL Server, Difference between Primary Key and Unique Key; Difference between Primary Key and Foreign Key; Drop all tables, stored procedure, views and triggers; Swap the values of two columns in SQL Server; Clear List of Recent SQL Server Connection From SQL Server Management Studio. Type in your query and then click Parse to make sure that everything is correct. Designed for experienced IT professionals ready to advance their status, Exam Ref focuses on the critical-thinking and decision-making acumen needed for success at the MCSA level. Learning the Basic SQL is good to start with. Is there a way to get column name and data type in a Teradata SQL Assistant 15. Prepare for Microsoft Exam 70-761–and help demonstrate your real-world mastery of SQL Server 2016 Transact-SQL data management, queries, and database programming. PROC SQL options; SELECT column(s) FROM table-name | view-name WHERE expression GROUP BY column(s) HAVING expression ORDER BY column(s); Notes: • The FROM table name can be a SAS data set, a view, or a DBMS table (such as Oracle or DB2) Name the input source. i have a sql query like "select name as firstname from employee"; in hibernate how can i find the column names of the resultant table. Because of these reasons, you should only use the asterisk (*) shorthand for the ad-hoc queries to examine the data of a table. Solution Two – Using HIERARCHYID Data Type. And the more applied steps your query includes, the more clutter you find on the screen. Make sure you are referencing the correct alias. ColumnName = 'code' AND TablesV. is an SQL select statement where the table names are ordinary R data frame names. A column does not have a default data type. Select the following Menu Option "File=>Import Data". Formatting numbers in Teradata. NULLS are treated as their own group, sorted and ranked last in ASC and sorted and ranked first in DESC. Reserved Words for Teradata Written by John Hall The following table lists the Teradata Reserved Words that have been added with Release V2R5. Once we will run this query we will get a warning In SQL server there are decimal and money data type to store precision and scale both together or say decimal values. Here are the most common Data types:. Listed below are the 4 different table types and their. Each subquery in the WITH clause specifies a table name, an optional list of column names, and a query expression that evaluates to a table (usually a SELECT statement). SELECT DISTINCT is designed for data sets that are nearly unique to begin with and works by sorting the entire intermediate spool file and discarding duplicate values. WHERE object_type = ‘TABLE’;. SQL aliases are used to give a table, or a column in a table, a temporary name. column_name format in SELECT clause to differentiate them in the result set. In this article, you will get to know 15 ways to optimize your SQL queries. The majority of the data the WWID is not repeated but there are handful that recently started showing up so I need to remove them (but also include ALL of the other columns). In order to prevent disclosure of private or enterprise data, you can now specify the privacy level (public, organizational, or private) for each data source. txt file format with output fields in particular column positions. Note that if there are multiple columns, say ID and Name, the column should be explicitly stated in Oracle queries: Select ID from test_a minus select ID from test_b. Loading data in python environment is the most initial step of analyzing data. Hi Bill, The records in your first set (without the RecordNumber column) have no column on which you can order the rows. SQL SERVER – How to split one column into multiple columns August 22, 2015 by Muhammad Imran Earlier, I have written a blog post about how to split a single row data into multiple rows using XQuery. Resulting query: select country, value1 as value from T_country union all select country, value2 as v from T_country union all select. SQL String Functions 1. The DB2 Catalog tables are described in the appendix of the SQL Reference. Execute the statement. The underlying storage for the Teradata ST_Geometry type is CLOB; therefore, the name or alias of the column (shape) is the only way ArcGIS can identify that the column stores spatial data. Is there a way to get column name and data type in a Teradata SQL Assistant 15. WHERE object_type = ‘TABLE’;. Don’t Over-Normalize. Hence here is a SQL Query that does that. Oracle DATE data type stores date and time data (year, month, day, hour, minute and second). Get Table information like Column Name, Data Type, Character length, Default Values etc in SQL Server To get the Table in information in SQL Server, we can use below Query: SELECT * FROM INFORMATION_SCHEMA. Oracle 10g Release 2 introduced the XMLTABLE operator, which allows you to project columns on to XML data in an XMLTYPE , making it possible to query the data directly from SQL. To get the sum of all the people’s ages the computer would need to look through all three disks and across all three columns in each disk in order to make this query. Note that if there are multiple columns, say ID and Name, the column should be explicitly stated in Oracle queries: Select ID from test_a minus select ID from test_b. Each column, variable and expression has a related data type in SQL. This is not allowed. Maps the Teradata data type VARCHAR as alphanumeric (A). Say, you are executing multiple queries in Teradata sequentially. So you can see how being able to use a T-SQL query to locate the table and column responsible for holding specific data saves a lot of time. Usage of the word AS is optional. -- change column name BlogTypeID to Tags EXEC sp_rename 'blogs. Notice, that here we also set "id" as PRIMARY KEY and uses AUTO_INCREMENT (A_I). All rights Reserved. You can use cast to convert between different data types in Teradata SQL. Changing Column Headings. WHEN columns. The SELECT statement is used to query the database and retrieve selected data that match the criteria that you specify. TeraDriver DRIVER LOCATION: Specify the location on your machine of the following. xls , data , export , tables Radu Gheorghiu This article shows three ways of how to move your data from SQL Server table or query to Excel or CSV file. Data types define what type of data a column can contain. These relationships need to be represented in the database. columns where tablename ='tbl' and databasename = 'database'. These data types are handled by Teradata Parallel Transporter as fixed-sized character strings. select COLUMN_NAME,DATA_TYPE,CHARACTER_MAXIMUM_LENGTH from INFORMATION_SCHEMA. This Query will return 3 columns Database, Table Name and Current Perm Space(GB). This is the second in a series of three posts about using the sp_tables, sp_columns and sp_stored_procedures stored procedures with Microsoft SQL Server databases. For example, when you need to access multi-categorical data (with multiple levels), such as Home Furnishings -> Dining -> Tables. And to have results in a. Because the column produced by the AVG function doesn't have its own name we made up a name for it - AvgPrice. column_name or table_alias. The syntax for defining a virtual column is listed below. Column statistics allow the query engine to estimate how many rows will meet the conditions of the WHERE and JOIN clauses, because they represent the distribution of values in a column. Aggregate Functions8 BTEQ76 Collect Statistics5 CTE2 Cursor3 Data Type3 Date Functions27 DCL Queries4 DDL Queries46 DML Queries6 Error And Resolution2 Functions3 Loaders3 Macro6 Math how to find a column name in all tables in teradata. , as in the SQL example above. For instance, customers make orders, and orders contain items. In this chapter, we will describe how to use the SELECT, INSERT, UPDATE, and DELETE SQL DML command statements, defined below. Query, Edit, Browse, and Manage Databases. When working with Power Query, it is easy to end up with many applied steps. system_type_id = b. To use cached data, current query must use same SQL statement, data source, query name, user name, password. txt file format with output fields in particular column positions. Try to use an index if less than 5% of the data needs to be accessed from a data set. I Explain Different types of temporary tables in Teradata. When you create a table, you must specify a data type phrase for each column. Each subquery in the WITH clause specifies a table name, an optional list of column names, and a query expression that evaluates to a table (usually a SELECT statement). If we want to sort our Users table by the FirstName column, we'll have to use the following ORDER BY SQL statement:. Execute the statement. row number (3). SQL aliases are used to give a table, or a column in a table, a temporary name. Used primarily with Oracle, some RDB, and once-in-a-blue-moon - Teradata, Informix and DB2. *** SQL warning 5811 MINUS of queries is not in entry level ANSI. Data types define what type of data a column can contain. It is not very hard for a seasoned Oracle professional to learn Teradata SQL. I have a table with many columns in Teradata. If there is no index named index-name but there is a WITHOUT ROWID table with that name, then (as of SQLite version 3. columns refers to the table structure itself. Summary: in this tutorial, you will learn about most commonly used SQL data types including character string data types, numeric data types, and date time data types. To get all columns, select * from dbc. Query to produce column names at top of results? Column names for customized query and merge. So you choose the best route to get there in the shortest The above example is designed to logically illustrate how Teradata works with base table rows and. The Goal of this article is to help the users by providing the concept to create a Excel file with unlimited sheets with all the data from the SQL Sever database eliminating the need of SSIS data conversion tasks, mapping and predefined column names, data types and etc. You will get a Query window (next figure) in which you can type an SQL command. If a column called "Last_Name", is to be used to hold names, then that particular column should have a "varchar" (variable-length character) data type. Sometimes it is required to create SQL statements (DDLs, DMLs etc) dynamically as per some logic/data that is not known earlier. This shows you the field names as well as the values that are in it for just the top rows on one amp (so it’s a fast query…faster than using SAMPLE). The types of joins that you learn are. The query statement does not change, but you can use query parameters to change the data. Please enter an answer. SQL Server DATE data type (available since SQL Server 2008) can store only year, month and day, so to preserve the time part you have to use DATETIME or DATETIME2(0) data types when migrating Oracle DATE. Aggregate Functions8 BTEQ76 Collect Statistics5 CTE2 Cursor3 Data Type3 Date Functions27 DCL Queries4 DDL Queries46 DML Queries6 Error And Resolution2 Functions3 Loaders3 Macro6 Math how to find a column name in all tables in teradata. It is not very hard for a seasoned Oracle professional to learn Teradata SQL. It does not refer to individual queries where one table can be used multiple times (with different aliases). , as in the SQL example above. SQL aliases are used to give a table, or a column in a table, a temporary name. For example, cast(n as bigint) cast the column "n" into type of bigint. SELECT [QUANTITY],[NAME],[PRICE] FROM [SALES$]; In this example, we specify the columns we would like the query to return. 2) Or instead of a query table, use either ADOX to read the header names, or, and it might be simpler, plain old ADO to query the data – and again returning a small dataset if there is a lot of data – and loop through the fields collection, grab the last few headers and edit the SQL to suit. If the column expression is a function, the data type of the view column will be the function return data type. The basics of each SQL command will be covered in this introductory tutorial. An example of a query could be: "get all data from the table 'people' sorted alphabetically" or "get names from the table 'people'. Try looking at this simple example:. By executing a SQL query on sys. All the Database Management Systems supported by SAP Advanced SQL Migration (Oracle, SQL Server, IBM DB2 LUW, Teradata and Netezza) allow users to explicitly perform data conversions and also to format outputs when presenting data to the clients. The virtual columns are calculated on the fly each time data is read whereas the stored column are calculated and stored physically when the data is updated. I have one table with lot columns in database at that time I tried to know the column names and corresponding datatypes and their maximum sizes in particular table for that I written the following query in SQL server to get SELECT column_name 'Column Name', data_type 'Data Type'. TYPE_NAME works for system data types and also for user-defined data types. Our visual SQL query tool is designed to simplify development of SQL queries for SQL Server. Teradata Query Efficiency-Tips. You can use cast to convert between different data types in Teradata SQL. In the SQL Server Programming Fundamentals tutorial I used variables in several articles, assigning values to the variables with several techniques. DOB DATE FORMAT 'YYYY-MM-DD' NOT NULL The following operations can be performed on data defined as DATE. To get database size information we can use sys. Also consider the maximum length of a table name (or column name) and the maximum size of an SQL statement - these limits vary considerably between products and versions. The second query is using the correct data type (varchar) for the predicate and that’s the reason Microsoft SQL Server can use an efficient and “real” index seek operation. In principle one can say, DISTINCT means that data is distributed across the responsible AMPs immediately, rows will be sorted (to remove duplicates). A DataFrame is a distributed collection of data organized into named columns. You will get a Query window (next figure) in which you can type an SQL command. If the column expression is a function, the data type of the view column will be the function return data type. Please enter an answer. Recursive query, teradata. A Column Drill Down report is similar to row drill report but main difference is that it’s based on the columns and will provide the additional details of the column summary. You'll also find any user comments (if any) about table columns in the meta table all_col_comments. In my case, I will write a specific query for the data that I want to export. Add intelligent features and get better insights from your data analysis—including data stored beyond SQL Server in Hadoop, Oracle, Teradata, and MongoDB. In the case of CSV this often happens when editing an EXCEL file and "deleted" columns are exported with every row ending in ,,,,,,,, or similar. In Teradata, the column naming standards are different: Uppercase or lowercase letters (A to Z and a to z). Domains and their base data types are currently not distinguished from each other. The objective was to sum up the number of calls for each Saturday-ending week using the Oracle next_day function. Data Types; Overview. Query, Edit, Browse, and Manage Databases. Virtual Columns in Oracle Database 11g Release 1. Application programs and ORACLE tools often allow users to access the database without directly using SQL, but these applications in turn must use SQL when executing the user's request. For analysis queries, extracting data from JSON columns can greatly degrade a query’s performance. In my case, I will write a specific query for the data that I want to export. Apart from this, the data retrieval in Teradata is carried out in the tables (or spool) to get them in this state Nested Join It requires a condition to be specified in the where clause of the Combinations of columns known to be frequently joined. Re: How to extract column names from a table using Teradata SQL. The sqldf(). To get database size information we can use sys. multidimensional data type with up to 5 dimensions and a user-defined maximum number of elements, all of the same specific data type. Formatting numbers in Teradata. This notation is not converted to syntax compatible with the Teradata VARBINARY and BINARY data types (a ff surrounded by single quotes followed. The special characters $, #, and _. Prepare for Microsoft Exam 70-761–and help demonstrate your real-world mastery of SQL Server 2016 Transact-SQL data management, queries, and database programming. Based on the analysis of these data we can easily see that how much How to get Case Sensitivity in Teradata. Other Changes. In this article, you will get to know 15 ways to optimize your SQL queries. Each type is described in the following sections. based on the column demographics. The SQL ALTER TABLE statement is used to add, modify, or drop/delete columns in a table. Data types define what type of data a column can contain. The columns of interest for retrieving database size information are: Column Name Description database_id ID of the database to which the file belongs to type_desc Description of file type. Once learned the sql data types available and spending a few extra minutes when designing your schema will result in faster query execution and an overall better performing database. You can execute SQL queries with different join types on Teradata machine with little or without any change. User activity can be logged in various level namely object, sql text, steps. Database query logging (DBQL) is an optional feature in Teradata through which we can track processing behavior of database by logging user activity. The Integration Service prepares the query once and runs the query for all input rows. As with any language, it can useful to have a list of common queries and function names as a reference. MySQL does not support the except function. Tables are provided at the end of the chapter to show the mappings between PointBase data types and industry standard and other common non-standard data types. This Query will return 3 columns Database, Table Name and Current Perm Space(GB). One row represents a single column; Scope of rows: represent all columns in a named table; Ordered by column position in table; Sample results. Example tools used, Cognos, Bo, Crystal reports, SERS, etc. The course names and logos are the trademarks of their respective owners. Microsoft SQL. Type Number. in the database. using Bteq you can also Import Export data. Part 2: Querying an Excel Worksheet Without Header and With Mixed Column Data Type. Teradata 14 is fully loaded with fantabulous features and enhancements, particularly I like the way they have compete directly with his. Precision and scale are also ignored. In MySQL and MariaDB, you must specify the data type of the column when you rename it. Their data types will be determined implicitly by the expressions. Database query logging (DBQL) is an optional feature in Teradata through which we can track processing behavior of database by logging user activity. incompatible. Where' Users' is Table Name Output is shown in below snap. Add intelligent features and get better insights from your data analysis—including data stored beyond SQL Server in Hadoop, Oracle, Teradata, and MongoDB. through query i can know the name but i don't want to parse the query. The TEXT column of ALL_VIEWS contains the text of the query that defines the view. To query/read an Excel worksheet that does not contain any column header record, the HDR (HeaDeR) property will be included in the provider_string. Like (SQL Query) select empName,Address from Employees. Having the same data types and column names. In SQL Server, we can create different types of. FUNCTIONS in Teradata. To get all columns, select * from dbc. I was looking to construct an sql statement so that I can have only the columen names as a header but with no data. ORDER BY clause can be used to sort the results returned by SELECT statement in SQL Server. Teradata Data Dictionary Query Toolbox Find tables with large object (LOB) data type columns in Teradata database Bart Gawrych 2019-10-31. In this case, I precede each node with the "ns:" preface. How to Concatenate Cells in Microsoft Access This tutorial demonstrates how to concatenate cells in Microsoft Access. Set the Product Name to Teradata Database. Recursion is a process of querying iteratively, and to perform a function multiple times on the data of interest. Try looking at this simple example:. For instance, if you set a new column with an Integer data type, you won’t be able to include text or dates or anything else. An arithmetic expression can contain column names, numeric numbers, and arithmetic operators. Skip to page content. Hence here is a SQL Query that does that. Type Number. I = non Index joins Easy way to get Syntax for a command in teradata. There are a few methods for listing all the tables in a database. Querying an Excel Worksheet Without Header. I consider AMPCPUTime, TotalIOCount, SpoolUsage as three main parameters to determine SQL Query performance. TableName = ColumnsV. Type DateTime. In principle one can say, DISTINCT means that data is distributed across the responsible AMPs immediately, rows will be sorted (to remove duplicates). exp_date - table1. To get database size information we can use sys. Note that using BETWEEN requires only one mention of the column name being tested, whereas without BETWEEN the column name must be provided for each condition tested. Example tools used, Cognos, Bo, Crystal reports, SERS, etc. The keys should be the column names and the values should be the SQLAlchemy types or strings for the sqlite3 legacy mode. Once learned the sql data types available and spending a few extra minutes when designing your schema will result in faster query execution and an overall better performing database. The selected information includes the name and a short description of each table and view. SELECT – to query data in the database. And to have results in a. Type Number. Below code get informtion about the table cat123. The data type tells Teradata how much physical storage to set aside for the column, as well as the form in which to store the data. Types in SQL Server - SQL Server Tutorial Sql query to. Add multiple columns to a table. Get Column Number Of Digits To Right Of The Decimal Point: 9. select COLUMN_NAME,DATA_TYPE,CHARACTER_MAXIMUM_LENGTH from INFORMATION_SCHEMA. TableName = ColumnsV. Note that using BETWEEN requires only one mention of the column name being tested, whereas without BETWEEN the column name must be provided for each condition tested. For example, when downloading Census data from the American Factfinder website, number codes used to identify geographic. Hi All, This is my first experience with recursive querying. “Computer programmers do it byte by byte” Related. Spark SQL is a Spark module for structured data processing. To get all columns, select * from dbc. By executing a SQL query on sys. Get Column SQL Type Name: 15. A data type specifies the type of data that column can hold such as character strings, numeric values, and date time values. TYPE_NAME works for system data types and also for user-defined data types. multidimensional data type with up to 5 dimensions and a user-defined maximum number of elements, all of the same specific data type. Order by ordinal_position. Notice that the UNION operator connects the individual queries. The SQL Data Types reference sheet. An arithmetic expression can contain column names, numeric numbers, and arithmetic operators. Next, you can either choose to export an entire table/view to Excel or to write your own query. How to create XML with a TSQL query? In this blog post I will describe how you can generate an XML file using TSQL statements. This Query will return 3 columns Database, Table Name and Current Perm Space(GB). In this case, I precede each node with the "ns:" preface. changes is set to false, the types of columns in Metastore can be changed from any type to any other type. You will get a Query window (next figure) in which you can type an SQL command. Once we will run this query we will get a warning In SQL server there are decimal and money data type to store precision and scale both together or say decimal values. Some data types have multiple names, these names are considered as equal here. This tutorial explains various methods to import data in Python. Set the Product Name to Teradata Database. Many ways are common to optimize a query while others are less obvious. More on using XML data type in SQL Server: When working with a typed XML column, you must precede each node in the path name with the namespace alias, followed by a colon. In this article, you will get to know 15 ways to optimize your SQL queries. To query/read an Excel worksheet that does not contain any column header record, the HDR (HeaDeR) property will be included in the provider_string. Teradata uses two different methods to produce the result sets of above queries, However the performance varies dramatically depending on the data. In technical descriptions of relational databases the concepts of table, row, and So far, we have been using the Structured Query Language in our Python examples and have covered many of the basics of the SQL commands. The Java application should not attempt to use this JDBC API to get non-ASCII character data. The data type is a guideline for SQL to understand what type of data is expected inside of each column, and it also identifies how SQL will interact with the stored data. User activity can be logged in various level namely object, sql text, steps. Overview; SELECT statements; Examples; Learning more about SQL; Overview. Apart from this, the data retrieval in Teradata is carried out in the tables (or spool) to get them in this state Nested Join It requires a condition to be specified in the where clause of the Combinations of columns known to be frequently joined. Alias Column Syntax. Following my tutorials on how to extract meta informations from Firebird SQL and from PostgreSQL, I'm now going to show how to retrieve the same informations from Microsoft SQL Server, using the INFORMATION_SCHEMA, with system tables (sysobjects, sysindexkeys, sysindexes, syscolumns, systypes, etc) and/or with system stored procedures (T-SQL). When used with character data type columns it sorts data in dictionary-order. Community Answers: Another way to see some quick sample data in the table is to use the TOP function, and just select the top several rows from a table. It can be done while creating a table and you can not alter once you created. Precision and scale are also ignored. Free Sap Hana SQL Guideline. MySQL TIME data type example. Basically aliases are created to make column names more readable. This notation is not converted to syntax compatible with the Teradata VARBINARY and BINARY data types (a ff surrounded by single quotes followed. FUNCTIONS in Teradata. You could also get this. In some cases we need to get the data from two different instances of SQL servers in this case one instance acts as primary data source and other instance acts as. Re: How to extract column names from a table using Teradata SQL. Saturday, August 15, 2015. The sqldf(). Explain types of re-distribution of data happening for joining of columns from two tables Case 1 - P.