Sql updating table variable
The ALTER TABLE statement specifies EMPLOYEES as the table to alter.
The MODIFY clause permanently modifies the format of the Salary column.
Just like the SELECT statement, the UPDATE statement executes row-by-row on the table being updated.
This means that the SET clause of the UPDATE statement is evaluated once for every row in the updated table.
I'm leaving certain of the columns null in order to later update them with the PK.Variable assignments, just like column assignments, can be made using the full range of T-SQL expressions that you could apply to regular columns in an UPDATE, allowing you to also write more complex expressions.Hi I'm using the SQL 2000 table variable to hold 2 different fact sets.DEFAULT Specifies that the default value defined for the column is to replace the existing value in the column.This can also be used to change the column to NULL if the column has no default and is defined to allow null values.