Sql updating a table from the same table mr nice guy dating
Below is the TSQL code to create and populate this table.
These two different tables will be used in my UDPATE statement examples below.
There may be times when you need to write some code to update a row, or set of rows in a table.
This is when you need to know how to use the UPDATE statement to update those rows.
In order to update a row in a SQL Server table you will use the UDPATE statement.There may be times when you don’t want to manually write a bunch of UPDATE statements with different literal strings to update your table.Suppose I wanted to change all the prices of my Toys with a single UPDATE statement.By doing this I can see what my WHERE condition will return to make sure it identifies the same rows I want to update.Once my SELECT statement does return the correct rows I can then copy the WHERE clause from my SELECT statement, and paste it into my UDPATE statement code.