Αποτελέσματα Αναζήτησης
The RENAME COLUMN clause is an option on the ALTER TABLE statement. You can rename an existing column in a base table to a new name without losing stored data or affecting any privileges or label-based access control (LBAC) policies that are associated with the table.
8 Μαρ 2019 · Use an ALTER TABLE statement. ALTER TABLE G31.TG31PDIX RENAME COLUMN RECORD_KEY TO RECORD_KEYY; This will only work if you use a version of DB2 that supports this feature. An older version might be out of luck. I'm not sure when they added it, but it was after 2004.
Db2 ALTER TABLE ALTER COLUMN allows you to modify the definitions of the existing columns in a table. The following illustrates the syntax of the ALTER TABLE ALTER COLUMN statement: ALTER TABLE table_name ALTER COLUMN column_name modification_type; Code language: SQL (Structured Query Language) (sql) In this syntax: First, specify the name of ...
In this tutorial, you will learn how to use the Db2 RENAME TABLE statement to change the name of a table to the new one.
You can use the ALTER TABLE statement to change the data types of columns in existing tables in several ways. About this task. In general, Db2 can alter a data type if the data can be converted from the old type to the new type without truncation or without losing arithmetic precision.
29 Οκτ 2024 · Accompanying the data is an abridged codebook (fruit_codebook.csv). (You can read more about my "Codebook Method" in my post Variable Renaming in R.)The codebook has six columns: old_name: The original name assigned to each variable in the data set.; new_name: The new name you want to assign to each variable in the data set.; variable_label: A brief description of what the variable measures.
2 Αυγ 2011 · The RENAME COLUMN clause is a new option on the ALTER TABLE statement. You can now rename an existing column in a base table to a new name without losing stored data. ALTER TABLE <tabname> RENAME COLUMN <column_name> TO <new_column_name> using the ALTER TABLE statement.
