Each contact may have a different value in its Contacted field depending on how many times it was contacted in the past.In this example, the address records are updated with the City and State value from a zip code lookup table.Below is the TSQL code to create and populate this table.These two different tables will be used in my UDPATE statement examples below.If you are an application programmer then you will more than likely need to write TSQL code to update your SQL Server database tables.In order to update a row in a SQL Server table you will use the UDPATE statement.You can specify the records to modify by applying a filter (WHERE clause) and linking the table to other tables and queries.
The update query below shows that the PICTURE column is updated by looking up the same ID value in CATEGORY_ID column in table Categories_Test and Categories. If you need to update multiple columns simultaneously, use comma to separate each column after the SET keyword. Here we only want to update PICTURE column in Categories_Test table where the data in Category_Name column is Seafood in table Categories. Software and hardware names mentioned on this site are registered trademarks of their respective companies.
Understanding and using Update Queries improves the performance of your applications (versus doing the same changes manually or in code), and makes them easier to maintain.
From the Access designer, you can interactively create a query and specify its type: Update Query Option when Designing Queries in MS Access 2013 Update Query Option when Designing Queries in MS Access 20 Update Queries let you modify the values of a field or fields in a table.
An Update Query is an action query (SQL statement) that changes a set of records according to criteria (search conditions) you specify.
It's a very powerful feature and a fundamental part of relational databases since you can modify a huge number of records at one time.