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truncate table tablename
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delete from tablename 

  Query1.Close ;
  Query1.SQL.Clear ;
  Query1.SQL.Add('Selete from mp3.db ');
  Query1.ExecSQL ;

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Delphi(Pascal) code:
SQL.Add('DELETE from talename')


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truncate table tablename
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delete from tablename

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SQL.Add('delete from tablename')

sSql:string;
sSql:='delete from tablename';
query1.close;
query1.clear;
query1.sql.text:=sSql;
query1.open;


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