TSQLQuery

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References: General info Libraries Field types Controls FAQ SQL how-to Working With TSQLQuery In-memory database applications Tutorials/practical articles: Overview 0 - Database set-up 1 - Getting started 2 - Editing 3 - Queries 4 - Data modules SQLdb Programming Reference Databases Advantage - MySQL - MSSQL - Postgres - Interbase - Firebird - Oracle - ODBC - Paradox - SQLite - dBASE - MS Access - Zeos

TSQLQuery is a fundamental database query component for use with any supported database. The component is found on SQLdb tab of the Component Palette.

Typical use of a TSQLQuery:

 SQLTransaction1.Database := SQLConnection1;
 SQLQuery1.Transaction := SQLTransaction1;
 DataSource1.DataSet := SQLQuery1;
 DBGrid1.DataSource := DataSource1;

Select

Select all columns from table somelist:

 SQLQuery1.SQL.Text := 'SELECT * FROM somelist';
 SQLQuery1.Open();

Insert

Insert a new record into table somelist:

 SQLQuery1.SQL.Text := 'INSERT INTO somelist (ItemNr,ItemCount) VALUES (1231,2)';
 SQLQuery1.ExecSQL();
 SQLTransaction1.Commit();

See also

• TSQLQuery doc
• Using SQLdb