IDalCommandParams.Item

Syntax

Item(Index: Integer): IDalCommandParam;

Parameters

Index - parameter index.

Description

The Item property returns SQL query parameters.

Example

Sub Main;

Var

MB: IMetabase;

DB: IDatabaseInstance;

Com: IDalCommand;

Params: IDalCommandParams;

i: Integer;

Begin

MB := MetabaseClass.Active;

DB := MB.ItemById("BD").Open(Null) As IDatabaseInstance;

Com := DB.Connection.CreateCommand("");

Com.SQL := "Select * From Table_1 Where Num1 > :Param And Num2 < :Param1";

Com.Parse;

Params := Com.Params;

For i := 0 To Params.Count - 1 Do

Params.Item(i).Value := (i + 1) * 10;

End For;

Com.Execute;

Com.Close;

End Sub Main;

After executing the example the connection to the BD database is established and the SQL query that selects all records from the Table_1 table, for which the values of the Num1 and Num2 fields satisfy the assigned parameters, is executed. Values of the parameters are set in the cycle.