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The SQL statement to execute
Source position: sqldb.pp line 414
published property TSQLStatement.SQL : TStrings; |
SQL must be set to the SQL statement to execute. It must not be a statement that returns a result set. This is the statement that will be passed on to the database engine when Prepare is called.
If ParamCheck equals True (the default), the SQL statement can contain parameter names where literal values can occur, in the form :ParamName. Keywords or table names cannot be specified as parameters. If the underlying database engine supports it, the parameter support of the database will be used to transfer the values from the Params collection. If not, it will be emulated. The Params collection is automatically populated when the SQL statement is set.
Some databases support executing multiple SQL statements in 1 call. Therefor, no attempt is done to ensure that SQL contains a single SQL statement. However, error reporting and the RowsAffected function may be wrong in such a case.
ParseSQL |
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CheckParams |
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Params |
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Prepare the statement for execution |
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Number of rows affected by the SQL statement. |