Sql update set if then else

Please check below result screen. We have updated state code column using CASE expression. I hope that you will get an idea about how to use CASE expression. I hope you will enjoy these tips while playing with SQL Server. Works great for a single row And, as clever as it is, updating by exception error just doesn't sit right with me SQL Server I have a table consisting of fields with a primary key auto-increment. I need to be able to duplicate via a stored procedure a specific row in the table identified by primary key value i.

What is the best way to do this I have had some issues with this is there another method? Please not that other users may try and access the orginal record during this insert process. Can you give me example syntax and comments. Thank You! Woa I never see something so ugly! Is anyone has a good solution, simple? Why its bad to test before if data already exists?

I'm glad technology has advanced this much since then The initial update would not lock any rows if the row didn't exist in the first place. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Making Agile work for data science. Stack Gives Back Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Visit chat. Linked 8. Now if the calling of the above procedure is done without the passing of any values, in that case, all the records will be displayed.

In the given table, the following query efficiently displaying the category wise count of the items. In this statement IF queries work like as a ternary statement. If the condition matches then the statement under the scope of IF block will be executed otherwise statement under ELSE block will be executed. You can also go through our other related articles to learn more —.