Ask Question Asked years, months ago. Viewed 232k times 114. I have a function that updates three tables , but I use three queries to perform this. I wish to use a more convenient. The Multi - Table Trick.
MySQL multi-table update. This means that by rewriting the query as follows, the semi-join. Suppose you wish to update a table named items which is defined using.
For multiple- table updates , there is no guarantee that assignments are carried out in any particular order. How to set multiple columns of a table using update query in mysql ? MySql update two tables at once. I have two tables that need need the exact same values for denormalization purposes.
BIGINT UNSIGNED NOT NULL AUTO. Example - Update multiple Tables. Multiple-Table Deletes and Updates. UPDATE customers, suppliers SET customers.
DWQA Questions › Category: Database › MYSQL multi-table update Vote Up Vote Down ARGUS asked months ago There are three tables : tbl_order ID Order ID Uid user. SELECT, but the result will be garbage. Actiforce entwickelt, produziert und vertreibt höhenverstellbare Tischgestelle. Actiforce develops, produces and distributes height adjustable sit stand desk. RCWhen I connect and execute my quiries as root user my query of multi - table update works fine update Stockists , areas set Stockists.
And I know for a fact that I do not want to nor should I need to code a trigger or SP EACH and EVERY time I want to update two tables at one time or use the values of one table to update another. I believe your answer was neither on topic nor. Assumed that because the select statement returned it properly that it would update properly.
So you think maybe I should put an index key in table three and instead of just let the database know that I was figuring the states where in the correct order for to match the names. Almost like putting some kind of relationship on the data. Okay will do and give that a go. English (en) Français (fr) Español (es) Italiano (it).
X ( X =2) there is only pre-version of multi-table updates. This code is not properly tested yet, that is why multi-table updates are not documented. A patch for this bug has been committed. InnoDB Multi -Versioning.
After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from:.
Keine Kommentare:
Kommentar veröffentlichen
Hinweis: Nur ein Mitglied dieses Blogs kann Kommentare posten.