Sql updating multiple tables

Posted by / 26-Jul-2017 06:51

We are going to update column DESCRIPTION and PICTURE in table Categories_Test by using data in table Categories, based on data in the common column CATEGORY_ID. Update data in a column in table A based on a common column in table B. Update data in two columns in table A based on a common column in table B. Conditionally update data in table A based on a common column in table B. No portion may be reproduced without my written permission.The update query below shows that the PICTURE column is updated by looking up the same ID value in CATEGORY_ID column in table Categories_Test and Categories. If you need to update multiple columns simultaneously, use comma to separate each column after the SET keyword. Here we only want to update PICTURE column in Categories_Test table where the data in Category_Name column is Seafood in table Categories. Software and hardware names mentioned on this site are registered trademarks of their respective companies.These exercises allow you to try out your skills with the UPDATE statement.You will be given questions that you need to solve.Cross table update (also known as correlated update, or multiple table update) in Oracle uses non-standard SQL syntax format (non ANSI standard) to update rows in another table. Update data in table A based on two or more common columns in table B.The differences in syntax are quite dramatic compared to other database systems like MS SQL Server or My SQL. Updates based on two or more common columns are normally used for tables where multiple columns work together as a primary key (known as composite primary key).

Well, the question is very valid, but it is truly not possible to do so.

Let me know if this solution satisfies the need of updating two tables in a single statement.

If not, I would love to know the reason, you want to update two more tables in a single statement. SQLAuthority.com)I’m stunned that this needs discussing in 2017.

I have a function that updates three tables, but I use three queries to perform this.

I wish to use a more convenient approach for good practice. Book ID is very important, without it The Books table update would happen to all rows and not only for the row with the specified id. There's also a couple restrictions for ordering and limiting on multiple table updates you can read about here: ctrl f "join").

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Should any right be infringed, it is totally unintentional.

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