The command to run is: Changes Donald Sax’s name to Don Sax.
Notice we used the primary key Sales Person ID to filter the row.
You can get started using these free tools using my Guide Though this article uses the Adventure Works database for its examples, I’ve decided to create an example table for use within the database to help better illustrate the examples. Also, let’s initially populate the table with some data using the following INSERT statement: You can learn more about the INSERT statement by reading our article Introduction to the INSERT Statement.
The UPDATE statement is used to change column values.
The general form to use is: contains the update values; we use joins to do the matching.
Let suppose that someone has accidentally updated all esql Sales Person. How can we easily repopulate this data without having to retype it in?
The UPDATE statement is used to change data within columns of a SQL Server data table.
In this article we’ll explore how to use the UPDATE statement.
The lock is held in place until the update statement completes.
Recall the INNER JOIN clause is used to match the rows from one table to another using a join condition. The complete script to run to log the output into a temporary table is: This statement defines a table with three columns and names the table variable @Update Log.
The reason we’re using a table variable is temporary and will be removed once query session is closed.
We discuss some best practices, limitations, and wrap-up with several examples. You can start at the beginning by reading Introduction to SQL Server Data Modification Statements.
All the examples for this lesson are based on Microsoft SQL Server Management Studio and the Adventure Works2012 database.