Introduction to Insert or Update Data

Update data or Inserting data can be done in a single process without going back to the database from the back end of the application multiple times. So below are some of the ways we can update or insert data in a single process.

To update data, the data needs to be checked in the specific table if the data already exists. If the data already exists then it will be updated. If the data does not exist, then the same data will be inserted.

So all data required to insert data should be sent to the stored procedure or code block if the scenarios need to both check and update data or insert it.

Data update and data insert are two important functions to add and update data in SQL Server Tables. Using SQL queries we can check for specific data if it exists in a table. The update query with the WHERE Clause can be used to update data passed from the front end or any other data generated from data processing during runtime. Sometimes it may be required to Insert the data if the same data is already present in the table.

In this article, we will look into the methods of updating data if already exists else insert the same data if the data does not exist, with examples.