Delphi dbgrid row cannot be located for updating
For example to delete a specific record from a specific table you could write a DELETE DDL statement and run the query with the Exec SQL method.The (ordinary) SQL statements are executed by setting the Note that obviously creating a persistent list of field objects for an ADOQuery component does not make sense.
On Windows, make sure that you have the latest versions of the Microsoft Data Access Components (MDAC) installed.To show the list of all the tables in a database we can use the component. The Get Table Names in the On Create event of the form fills the Combo Box with the table names and the Button is used to close the query and to recreate it to retrieve the records from a picked table. Button1Click(Sender: TObject); var tblname : string; begin if Combo Box1. The Params property allows replacable parameters in the predefined SQL statement.A parameter is a placeholder for a value in the WHERE clause, defined just before the query is opened.