For more information, see WITH common_table_expression (Transact-SQL). For information about table hints, see Table Hints (Transact-SQL).

updating a column in sql-12updating a column in sql-4

These exercises allow you to try out your skills with the UPDATE statement.

You will be given questions that you need to solve.

Syntax update statement ::= Description of the illustration update_Keyword and Parameter Description alias Another (usually short) name for the referenced table or view, typically used in the contains references to columns in the table being updated, the references are resolved in the context of the current row.

The old column values are used on the right side of the equal sign.

Address AFTER UPDATE AS IF ( UPDATE (State Province ID) OR UPDATE (Postal Code) ) BEGIN RAISERROR (50009, 16, 10) END; GO -- Test the trigger.

UPDATE summary_data SET current_category = (SELECT category_id FROM products WHERE products.product_id = summary_data.product_id) WHERE EXISTS (SELECT category_id FROM products WHERE products.product_id = summary_data.product_id); If you want to test your skills using the SQL UPDATE statement, try some of our practice exercises.

IF UPDATE returns the TRUE value in INSERT actions because the columns have either explicit values or implicit (NULL) values inserted.

USE Adventure Works2012; GO IF EXISTS (SELECT name FROM sys.objects WHERE name = 'reminder' AND type = 'TR') DROP TRIGGER Person.reminder; GO CREATE TRIGGER reminder ON Person.

UPDATE() is used anywhere inside the body of a Transact-SQL INSERT or UPDATE trigger to test whether the trigger should execute certain actions.