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What does insert query return in MySQL?
6 Answers. INSERT just returns true or false. to actually return something useful, you will need a SELECT or similar query. there is no result to fetch with INSERT.
What does insert query return?
SCOPE_IDENTITY() : It returns the last identity value generated by the insert statement in the current scope in the current connection regardless of the table. IDENT_CURRENT(‘TABLENAME’) : It returns the last identity value generated on the specified table regardless of Any connection, session or scope.
How to prevent updates to a table, with an SQL Server?
CREATE TRIGGER [Item_Update_AnyBilled] ON [dbo]. [Item] FOR UPDATE AS BEGIN SET NOCOUNT ON; DECLARE @AnyBilled BIT; SELECT TOP (1) @AnyBilled = 1 FROM inserted i JOIN deleted d ON i.ItemId = d.ItemId WHERE d.BillId IS NOT NULL; IF COALESCE (@AnyBilled, 0) = 1 BEGIN RAISERROR (2870486, 16, 1); — Cannot update a record that is part of a bill.
Is it safe to update all rows in a table?
Performing DML operations through tested application are always safe and efficient. This process also prevents an accidental update or delete of all rows in a table. In my environment, I have a couple of tables that often require ad-hoc updates of certain values or delete of certain rows.
Is there a safe update option in MySQL?
Unfortunately, MySQL doesn’t appear to expose a “safe updates” connection option. However, it does expose a “sessionVariables” option. This option defines which “SET” statements will be executed after the database connection is established.
How to disable an update trigger in a table?
If an update trigger is already defined on the table, then alter the code above can in inserted into the body of trigger as shown below: If you have a need to update all of the rows of table, then disable the trigger or ALTER the trigger to prevent the logic from executing.