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    Updating multiple fields mysql

    The UPDATE statement requires a few items of information in order to operate.Firstly, it needs the name of the table that is to be updated.Discuss using ASP 3 to work with data in databases, including ASP Database Setup issues from the old P2P forum on this specific subtopic. This is a community of tens of thousands of software programmers and website developers including Wrox book authors and readers. By joining today you can post your own programming questions, respond to other developers questions, and eliminate the ads that are displayed to guests. I have the need for updating multiple fields in a record. The following My SQL statement will update the 'receive_qty' column of newpurchase table with a new value 25 if the value of purch_price is more than 50.My SQL UPDATE using NULL My SQL UPDATE command can be used to update a column value to NULL by setting column_name = NULL, where column_name is the name of the column to be updated. You are currently viewing the Classic ASP Databases section of the Wrox Programmer to Programmer discussions. My Sql = "UPDATE Kontingent SET(Jan, Feb, Mar, Apr, Maj, Jun, Jul, Aug, Sep, Okt, Nov, Dec) = (2,2,1,1,1,1,1,2,2,2,2,2) WHERE Mem ID =18" I am updating another table before this one and it works fine, but when I excecute the statement. UPDATE Kontingent SET Jan = 2, Feb = 2, Mar = 1 WHERE Mem ID = 18 By the way - what database are you using, and are all of your fields of type INT? The syntax in this case would look like the following: UPDATE TABLE "table_name" SET ("column_1", "column_2") = ([new value 1], [new value 2]) WHERE " Ha en forsat god dag. My logical sence tell me that it can't be true that one have to send multiple commands to update one record. The syntax I'm suggesting doesn't mean that you have to send multiple commands - you can update many fields using one statement...

    For example, if a PACK_TYPES row is changed because an error is found, how do its new values propagate backwards into products?But it's hard to tell from what has been explicitly given in your question.CREATE ALGORITHM=MERGE VIEW products_with_packaging_info AS SELECT p.*, pt.width as packaging_width, pt.height as packaging_height, pt.weight as packaging_weight, pt.case_count AS packaging_case_count FROM PRODUCTS p JOIN PACK_TYPES pt ON = p.packaging_type; queries against this view work exactly the same as queries against either table individually, as long as every product has a pack type.The WHERE keyword is probably the most important part of the statement to remember.Without a WHERE condition, the update will be applied to every row in the table.

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