WebI'm trying to create a generic before update trigger which will compare all :old.column_values to all :new.column_values. If the column_values are different, then … Web15 jun. 2005 · Your answer demonstrates that changing a column name in Oracle is truely a pain. The view solution is simple enough. Here's the problem with it: It adds one more layer of complexity, one more source of confusion, one more thing to document, one more thing to remember.

rename column in VIEW - Oracle Forums

Web24 apr. 2024 · There is no such command as alter view add a column or alter view modify the column. We need to go through the create or replace view method Create or replace view emp_high_sal as select empno,ename,sal From emp where sal > 200000; This command creates the view if it is not existent and modifies the view if it is existent. WebThe view must be in your own schema or you must have ALTER ANY TABLE system privilege. Syntax alter_view ::= Description of the illustration alter_view.eps ( out_of_line_constraint::= —part of constraint::= syntax) Semantics schema Specify the schema containing the view. how many lbs is 8 stone

RENAME - Oracle

Web5 jul. 2024 · select col.column_id, col.owner as schema_name, col.table_name, col.column_name, col.data_type, col.data_length, col.data_precision, col.data_scale, col.nullable from sys.all_tab_columns col inner join sys.all_views v on col.owner = v.owner and col.table_name = v.view_name order by col.owner, col.table_name, col.column_id; Web30 jul. 2013 · In Toad for Oracle, this SELECT mycolumn "MyNewColumnName" from MyTable and this SELECT mycolumn MyNewColumnName from MyTable also work for … WebIn Oracle 9i and above we have a simple rename column command that makes it easy to rename any table column. Internally, the rename column syntax adjusts the Oracle data dictionary only, since the column names are not stored directly inside the segment itself: SQL> desc sales Name Null? Type ---------------- -------- --------------- howard wi supper club