Query SELECT DatabaseName, TableName, CreateTimeStamp, LastAlterTimeStamp FROM DBC.TablesV WHERE TableKind = 'T' and DatabaseName = 'DBC' ORDER BY TableName; A session becomes unbound to the temporary table by … Iterating through rows and drop teradata table Posted 03-01-2017 08:50 PM (1720 views) I have a control that that has one column - Output_tbl_name . Syntax. DROP TABLE db.WT_tablename; DROP TABLE db.ET_tablename; DROP TABLE db.UV_tablename; DROP TABLE db.LT_tablename; Tags for DROP ERROR TABLES in Teradata drop ml table Following is the generic syntax for DROP TABLE. This tutorial will only cover how to create table on the go and how to generate insert statement dynamically and execute them. Please let me know if you have already have a working solution for it. As mentioned earlier, the delete of all rows of a table is the fastest thing that Teradata does. Hope this helps. Teradata Drop Table If Exists. DROP Table statement removes all the data, indexes, triggers, constraints along with the definition of the table. Apart from Teradata, you can learn here Data Warehousing, SQL, Linux, Full Forms, and more. Prerequisites. However, we can use the below syntax for changing the length of the datatype only for varchar. DROP TABLE [ IF EXISTS ] table_name Description. Drop a column in a table in Teradata. Volatile tables are very similar to derived tables, but their existence is not limited to their transaction; they stay materialized until the sessions in which they have been created ends. Types Teradata supports different types of tables. The following conditions apply to dropping columns from a table. The optional IF EXISTS clause causes the error to be suppressed if the table does not exist. DROP TABLE command is used to drop a table. What is a Teradata Volatile Table? Drops an existing table. GRANT CREATE TRIGGER, DROP TRIGGER ON TrigTable TO TrigUser; You can also grant the same privileges as in the previous requests using the short form TRIGGER to mean both CREATE TRIGGER and DROP TRIGGER. The following command is used to drop a table from SQL Server database. As a result of the drop table, the table structure along with the data will be lost permanently. We can modify the DDL using a Teradata ALTER TABLE or create an empty table with the desired DDL statement and copy the data using the Teradata INSERT INTO statement. 0. Only the records will be deleted and the table structure will remain the same. It is exactly the opposite in Teradata. This SQL finds all the tables that match the criteria, in this case the name of the user, and creates the commands that you'd need to use to DROP them. [Sign Up using above link and get $100 joining bonus]. If it's a one shot task and you simply don't want to delete 20 tables by hand, let the database write your SQL for you. So, we need to make sure that we have selected the correct database before executing the DROP TABLE statement. I have been asked to loop through that table and drop the tables that have been processed. DROP TABLE and CREATE TABLE are DDL statements. We cannot drop indexed columns from a table without first dropping the index on those columns. DROP TABLE tablename. © 2021 TeradataPoint.com ❤ All Rights Reserved. Forget Code. How to Check Teradata Database Release and Version, Changing the screen width in Teradata BTEQ. You can drop a column from a table with ALTER command. SQL DROP Table statement is used to delete or drop a table from a database or SQL Schema.DROP Table statement removes all the data, indexes, triggers, constraints along with the definition of the table. Note: I would love to credit for both of these solutions, but in truth I found them while googling to solve the problem. We can drop the secondary index at any time if it is not required. The following request grants CREATE TRIGGER and DROP TRIGGER privileges to user TrigUser for TrigDB as the subject table .
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