You can use the RunSQL action to run a Microsoft Access action query using the corresponding SQL statement. You can also run a data-definition query.
The RunSQL action uses the following argument.
|
Action argument |
Description |
|
SQL Statement |
The SQL statement for the action query or data-definition query you want to run. The maximum length of this statement is 256 characters. This is a required argument. |
You can use action queries to append, delete, and update records and to save a query’s result set as a new table. You can use data-definition queries to create, alter, and delete tables, and to create and delete indexes. With the RunSQL action, you can perform these operations directly from a macro without having to use stored queries.
If you need to type an SQL statement longer than 256 characters, use the RunSQL method of the DoCmd object in Visual Basic instead. You can type SQL statements of up to 32,768 characters in Visual Basic.
Microsoft Access queries are actually SQL statements that are created when you design a query using the design grid in the Query window. The following table shows the Microsoft Access action queries and data-definition queries and their corresponding SQL statements.
|
Query type |
SQL statement |
|
Action | |
|
Append |
INSERT INTO |
|
Delete |
DELETE |
|
Make-table |
SELECT...INTO |
|
Update |
UPDATE |
|
Data-definition (SQL-specific) | |
|
Create a table |
CREATE TABLE |
|
Alter a table |
ALTER TABLE |
|
Delete a table |
DROP TABLE |
|
Create an index |
CREATE INDEX |
|
Delete an index |
DROP INDEX |
You can also use an IN clause with these statements to modify data in another database.
Note To run a select query or crosstab query from a macro, use the View argument of the OpenQuery action to open an existing select query or crosstab query in Datasheet view. You can also run existing action queries and SQL-specific queries in the same way.
Tip To see the SQL equivalent of a Microsoft Access query, click SQL on the View menu in the Query window. Use the listed SQL statements as models to create queries to run with the RunSQL action. Duplicating an SQL statement in the SQL Statement argument for the RunSQL action has the same effect as running this Microsoft Access query in the Query window.
OpenQuery Action, RunSQL Method.