Updating with select in sql server
Statement Type=insert Figure4 Click on the ok Button.
In this article I will show you the most common methods of using the UPDATE statement.(A little bit anyway.) There is logging, updates to index rows, triggers, replication needs, Always On needs, perhaps page splits and even re-ordering when the key values are changed that can take place.All of this leads to additional work and elongates the processing.I realize the title is generic and that is because the problem is generic.On the surface it would not surprise me that an update takes longer than a select.The column values returned by the subquery are assigned to the columns in the column list in order. WHERE search_condition Chooses which rows to update in the database table.
The first value is assigned to the first column in the list, the second value is assigned to the second column in the list, and so on. Only rows that meet the search condition are updated.
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.
Figure5 Stored Procedure to Check update Master Insert Update Delete - right click select execute stored procedure... Statement Type = 'Update' Figure6 Click on the ok Button.
and check in the employee table with following updated data where id is 7.
If you omit this clause, all rows in the table are updated.