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For more information, seeALTER INDEX (Transact-SQL). Note The DBCC DBREINDEX statement is deprecated so you should avoid using it in new applications. DROP INDEX new heap rebuild (if applicable). Note Index page deallocation during a DROP INDEX operation is always fully logged. ...
SELECT USER,HOST,authentication_string FROM MYSQL.user WHERE authentication_string IS NULL OR authentication_string=''; MySQL 5.6以及下版本 SELECT USER,HOST,`password` FROM MYSQL.user WHERE `password` IS NULL OR `password`=''; 执行以下SQL语句,删除掉源库密码为空的用户,或者给用户添加密码。 删...
such as "Help," "Contact Support," and "Show Training." The error message you're receiving suggests that there may be a problem with the network connection, but if you're certain that your network connection is stable, there could be other reasons why you'...
I have written several Stored Procedures which have multiple SELECT statements in order to return multiple ResultSets to the calling script. SQL script of one such procedure is as below: DELIMITER`$$ CREATE PROCEDURE `GetLists` () BEGIN ...
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DB object may be safely shared by multiple concurrent threads...You can however still gradually evolve your key format over time with a little bit of pre-planning...Performance Performance can be tuned by changing the default values of the types defined in ...
The implicit FOR UPDATE locking used in mutations is intended only for the target table of the mutation. But it can spread to subqueries used in a projection. Here are some examples: CREATE TABLE ab (a int PRIMARY KEY, b int, INDEX (b));...
Describe the bug When creating a question from a table that has a lot of rows (multiple 10.000s) and some filters of type "Is"/"Is not" on a same text column, the UI break and no data is being displayed. Instead a warning sign is showing...
Symptoms The MsDrdaService.exe can't process SQL SELECT statements that have INNER JOIN and OUTER JOIN. Status Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. Reso...