Updating multiple columns sql server
Suppose every Sales Person whose ID is less than 10031 worked in Saline.
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.
In the diagram below you’ll see where there is a match between these two tables: By matching esql Sales Person. The OUTPUT clause is used to log changes made to rows affect by an UPDATE statement.
Full Name to v Sales Person we can update esql Sales Person. Before we go much further, let’s first wipe out the city column values. Notice here we’re constructing a full name from the views First Name and Last Name columns. So, once we have the join, the last bit of business to it do the update. Suppose the Sales Last Year figures were found to be incorrect and needed to be adjusted by five percent.
This “all or nothing” behavior can be modified for arithmetic errors. Will generate an error if SET ARITHABORT is set to ON.
Knowing that esql Sales Person was originally populated by information from Sales we use knowledge to set up a query that pumps data from v Sales Person into esql Sales Person.
All the examples for this lesson are based on Microsoft SQL Server Management Studio and the Adventure Works2012 database.Though an update statement can modify columns data from many sources, such as literal values or other query results, the basic format is the same.There are three components to an UPDATE statement: We’re now going to do some sample updates, so if you haven’t done so already, run the script to create the esql Sales Person table.When SET ANSI_PADDING OFF then CHAR data types are padded with spaces, VARCHAR data types have trailing spaces removed, and VARBINARY have trailing zeros removed.For instance, if a field is defined as CHAR(10) and you update the value ‘Kris’ into this column, then it will be padded with six spaces.The UPDATE statement is capable of updating more than one row. All rows returned via the WHERE clause criteria are updated.