Sql updating multiple rows based on a select statement


28-May-2016 02:51

Limits the rows returned in a query result set to a specified number of rows or percentage of rows in SQL Server 2016.When TOP is used in conjunction with the ORDER BY clause, the result set is limited to the first percent of rows from the result set.

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The inserted and deleted tables in the triggers will return only the rows that were truly affected by the INSERT, UPDATE, MERGE, or DELETE statements. Employee ORDER BY Hire Date ASC) AS th WHERE Human Resources. For more information, see ORDER BY Clause (Transact-SQL).Use TOP (or OFFSET and FETCH) instead of SET ROWCOUNT to limit the number of rows returned.When specified in the MERGE statement, the TOP clause is applied the entire source table and the entire target table are joined and the joined rows that do not qualify for an insert, update, or delete action are removed.

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These methods are preferred over using SET ROWCOUNT for the following reasons: For backward compatibility, the parentheses are optional in SELECT statements.We recommend that you always use parentheses for TOP in SELECT statements for consistency with its required use in INSERT, UPDATE, MERGE, and DELETE statements in which the parentheses are required. Sales YTD If you have to use TOP to apply updates in a meaningful chronology, you must use TOP together with ORDER BY in a subselect statement.