test

Using Database Operations

The Query (Select) Operation

ProcedureTo perform a query operation on a table

  1. Execute the select() method with the “where” clause specified if necessary.

  2. Loop through the ResultSet using the next() method.

  3. Process the return record within a while() loop.

    For example:


    package prjSQLServer_JCDjcdALL;


public class jcdTableSelect
{

    public com.stc.codegen.logger.Logger logger;

    public com.stc.codegen.alerter.Alerter alerter;

    public com.stc.codegen.util.CollaborationContext collabContext;

    public com.stc.codegen.util.TypeConverter typeConverter;

    public void receive( com.stc.connector.appconn.file.
FileTextMessage input, dtd.otdOutputDTD1325973702.
DB_Employee otdOutputDTD_DB_Employee_1, otdSQLServer.OtdSQLServerOTD
otdSQLServer_1, com.stc.connector.appconn.file.FileApplication FileClient_1 )
        throws Throwable
    {
        FileClient_1.setText( "Selectiong records from db_employee table via
Table Select........" );
        FileClient_1.write();
        otdSQLServer_1.getDb_employee().select( input.getText() );
        while (otdSQLServer_1.getDb_employee().next()) {
            otdOutputDTD_DB_Employee_1.setEmpNo( typeConverter.shortToString(
otdSQLServer_1.getDb_employee().getEMP_NO(), "#", false, "" ) );
            otdOutputDTD_DB_Employee_1.setLastname(
otdSQLServer_1.getDb_employee().getLAST_NAME() );
            otdOutputDTD_DB_Employee_1.setFirstname(
otdSQLServer_1.getDb_employee().getFIRST_NAME() );
            otdOutputDTD_DB_Employee_1.setRate(
otdSQLServer_1.getDb_employee().getRATE().toString() );
            otdOutputDTD_DB_Employee_1.setLastDate(
typeConverter.dateToString( otdSQLServer_1.getDb_employee().getLAST_UPDATE(),
"yyyy-MM-dd hh:mm:ss", false, "" ) );
            FileClient_1.setText( otdOutputDTD_DB_Employee_1.marshalToString() );
            FileClient_1.write();
        }
        FileClient_1.setText( "Table Select Done." );
        FileClient_1.write();
    }

}