Update row if exists else insert mssql

This means that if a row exists and your update was successful, it may still return affected rows. If you don’t know if the row exists , chances are you might not know if it’s changing either. MySQL if row exists update else insert. They can choose which one they want to atten or even both. I eventID and activityID are all FK poiting to other tables.

UPDATE if exists else INSERT in SQL. Here we’re using the Active Record as well as Query Binding features in Codeigniter to insert or update a record. There is also similar article for the native PHP and MYSQL way. You can read that here.

Learn how to INSERT an If Row Does Not Exist (UPSERT) in MySQL. I whant to write single sql for this: if not exists (table colum value=something) insert new row else update table colum value i know that MSSQL has this metho but how to do this in mysql ? Instea they may have unique key or combination of unique indexes. This creates the possibility that mysql _affected_rows() may not actually equal the number of rows matche only the number of rows that were literally affected by the query. If there can be more than one line, you can do something like.

REPLACE - DELETE all rows that match on any UNIQUE (or PRIMARY) KEY, then INSERT. It feels like IODKU will be less work. No, another alternative is to try to insert a row and see if there is a duplicate, which violates.

Duplicate key update statement. The statement basically ties to insert the record and if a matching primary key is found it will run an update instead. Help please string aux = tbEID. My opinion - if all you are doing is seeing if a row exists or not, the SCD transform is overkill.

If you actually want to check each attribute for changes (to handle mixed Type and Type columns) the SCD transform might be worth it. The NO EXISTS method is more expensive due to the IX page lock by update and insert followed by X Lock by insert. I am trying to write a cursor. I have created a table for capturing login name and time from sys.

Now, I need to write a cursor to update the login time to last login time if the login already exists and insert a row in case login does not exists in my table. I want to insert new row to the table only if a row with some criteria doesn't match, else i want to update the existing row. Update record if exists else insert.

For those of you wishing to build a package that determines if a source row exists in the destination and if so update it else insert it, this link is for you. I would like to insert a row in to the table if the key does not exist and update a row if a key exists. Oracle, DBand even Sqlite have SQL syntax that allows you to solve this problem in a single.

This has to be wrapped in a transaction to avoid a race condition, though. Otherwise someone might insert a row between the time I check the table and when I insert the row. Just use REPLACE INTO (instead of INSERT INTO). If the primary key does not exist it will just insert it.

If it exists it will be replaced with the provided contents.