Data Manipulation Language SQL Statements

So far, only selecting, sorting, and summarizing data using various forms of the SQL SELECT clause have been covered. Microsoft Jet also uses SQL to modify a database. You can insert new records, delete existing records, and update values in existing records using syntax that’s similar to that used with the SELECT statement.

Data-manipulation queries can either be created as permanent QueryDef objects in the database, or executed directly in Visual Basic code by using the Execute method of a database object variable.

The single-table and multiple-table query updatability rules for result sets created from SQL SELECT statements that are discussed in the previous section also apply to updates done with the data manipulation language (DML) statements discussed in this section.