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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.
16 Απρ 2015 · This worked for me on V7R1 and it selects for a specific library: select COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGth, NUMERIC_PRECISION from SYSIBM/COLUMNS where TBNAME = 'TABLE' and TABLE_SCHEMA='LIBRARY';
if you want to rename a table in the same schema, you can use like this. RENAME TABLE schema.table_name TO "new_table_name"; Otherwise, you can use tools like DBeaver to rename or copy tables in a db2 db.
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:
To change the name of an existing table to a new one, you use the RENAME TABLE statement. Here is the syntax of the RENAME TABLE statement: RENAME TABLE table_name TO new_table_name; Code language: SQL (Structured Query Language) ( sql )
To rename a column in earlier versions of DB2, we used to recreate the table with a new column name and then insert the data from the earlier table on to a newly created table. The catch here is that while renaming the table, the source table should not have any references such as views, indexes, MQTs, functions, triggers, and constraints.
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 or affecting any privileges or label-based access control (LBAC) policies that are associated with the table.
