我想通过附加更改表名SYSDATE.例如,我想将表更改EXAMPLE_TABLE为EXAMPLE_TABLE_05_01_2015,但我想从中获取日期SYSDATE.
我准备了以下但是它不起作用:
ALTER TABLE "MYDB"."EXAMPLE_TABLE" rename to (SELECT 'EXAMPLE_TABLE' || TO_CHAR(SYSDATE, '_dd_MM_yyyy') FROM DUAL);
Run Code Online (Sandbox Code Playgroud)
我怎样才能使它工作?
这是错误:
SQL Error: ORA-14047: ALTER TABLE|INDEX RENAME may not be combined with other operations
14047. 00000 - "ALTER TABLE|INDEX RENAME may not be combined with other operations"
*Cause: ALTER TABLE or ALTER INDEX statement attempted to combine
a RENAME operation with some other operation which is illegal
*Action: Ensure that RENAME operation is the sole operation specified in
ALTER TABLE or ALTER INDEX statement;
Run Code Online (Sandbox Code Playgroud)
使用execute immediate.
begin
execute immediate
'alter table mydb.example_table rename to ' ||
'example_table_' || to_char(sysdate, 'dd_mm_yyyy');
end;
/
Run Code Online (Sandbox Code Playgroud)
也就是说,我有预感你最好使用分区表.