Examples of org.apache.empire.db.DBSQLScript.run()

org.apache.empire.db.DBSQLScript.run()
Runs all SQL Statements using the supplied driver and connection. @param driver the driver used for statement execution @param conn the connection

        // Now extend the size of the field from 20 to 40 characters
        System.out.println("Extending size of column FOO to 40 characters:");
        C_FOO.setSize(40); 
        script.clear();
        db.getDriver().getDDLScript(DBCmdType.ALTER, C_FOO, script);
        script.run(db.getDriver(), conn, false);


        // Now set a longer value for the record
        System.out.println("Changing the value for the FOO field for the above employee to a longer string:");
        rec.setValue(C_FOO, "This is a very long field value!");
        rec.update(conn);

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        // Finally, drop the column again
        System.out.println("Dropping the FOO column from the employee table:");
        script.clear();
        db.getDriver().getDDLScript(DBCmdType.DROP, C_FOO, script);
        script.run(db.getDriver(), conn, false);
    }


    /**
     * This function demostrates the use of the DBQuery object.<BR>
     * First a DBQuery is used to define a subquery that gets the latest employee department history record.<BR>

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      DBSQLScript script = new DBSQLScript();
    db.getCreateDDLScript(driver, script);
    // Show DLL Statement
    System.out.println(script.toString());
    // Execute Script
    script.run(driver, conn, false);
    // Commit
    db.commit(conn);
  }


  /**

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        DBSQLScript script = new DBSQLScript();
        db.getCreateDDLScript(driver, script);
        // Show DLL Statement
        System.out.println(script.toString());
        // Execute Script
        script.run(driver, conn, false);
    }


    public void initializeDatabase() {
        try {
            if (!databaseExists()) {

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    if(!databaseExists(conn, db)){
      DBSQLScript script = new DBSQLScript();
      db.getCreateDDLScript(db.getDriver(), script);
      System.out.println(script.toString());
      script.run(db.getDriver(), dbResource.getConnection(), false);
    }
    
    // STEP 5: Clear Database (Delete all records)
    System.out.println("*** Step 5: clearDatabase() ***");
    clearDatabase(conn, db);

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    if(!databaseExists(conn, db)){
      DBSQLScript script = new DBSQLScript();
      db.getCreateDDLScript(db.getDriver(), script);
      System.out.println(script.toString());
      script.run(db.getDriver(), dbResource.getConnection(), false);
    }
    
    conn.close();
  }

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        DBSQLScript script = new DBSQLScript();
        db.getCreateDDLScript(driver, script);
        // Show DLL Statements
        System.out.println(script.toString());
        // Execute Script
        script.run(driver, conn, false);
        db.commit(conn);
        // Open again
        if (!db.isOpen()){
        db.open(driver, conn);
        }

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      DBSQLScript script = new DBSQLScript();
    db.getCreateDDLScript(driver, script);
    // Show DLL Statement
    System.out.println(script.toString());
    // Execute Script
    script.run(driver, conn, false);
    // Commit
    db.commit(conn);
  }


  /**

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        DBSQLScript script = new DBSQLScript();
        db.getCreateDDLScript(driver, script);
        // Show DLL Statement
        System.out.println(script.toString());
        // Execute Script
        script.run(driver, conn, false);
        // Commit
        db.commit(conn);
    }


    /**

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        // Now create the corresponding DDL statement 
        System.out.println("Creating new column named FOO as varchar(20) for the EMPLOYEES table:");
        DBSQLScript script = new DBSQLScript();
        db.getDriver().getDDLScript(DBCmdType.CREATE, C_FOO, script);
        script.run(db.getDriver(), conn, false);
        
        // Now load a record from that table and set the value for foo
        System.out.println("Changing the value for the FOO field of a particular employee:");
        DBRecord rec = new DBRecord();
        rec.read(db.T_EMPLOYEES, idTestPerson, conn);

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