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103 lines
2.1 KiB
Plaintext
103 lines
2.1 KiB
Plaintext
/*
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* Program type: Embedded Static SQL
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*
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* Description:
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* This program performs a simple update to an existing
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* table, asks the user whether to save the update, and
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* commits or undoes the transaction accordingly.
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* The contents of this file are subject to the Interbase Public
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* License Version 1.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy
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* of the License at http://www.Inprise.com/IPL.html
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*
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* Software distributed under the License is distributed on an
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* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
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* or implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code was created by Inprise Corporation
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* and its predecessors. Portions created by Inprise Corporation are
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* Copyright (C) Inprise Corporation.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*/
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#include "example.h"
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#include <stdio.h>
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#include <stdlib.h>
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int do_save (void);
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void clean_up (void);
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EXEC SQL
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BEGIN DECLARE SECTION;
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EXEC SQL
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END DECLARE SECTION;
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int main (void)
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{
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clean_up();
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/* Insert a new row. */
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EXEC SQL
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INSERT INTO country (country, currency)
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VALUES ('Mexico', 'Peso');
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/* Check the SQLCODE directly */
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if (SQLCODE)
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{
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isc_print_sqlerror((short)SQLCODE, gds__status);
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exit(1);
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}
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printf("\nAdding: country = 'Mexico', currency = 'Peso'\n\n");
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/* Confirm whether to commit the update. */
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if (do_save())
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{
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EXEC SQL
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COMMIT RELEASE;
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printf("\nSAVED.\n\n");
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}
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else
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{
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EXEC SQL
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ROLLBACK RELEASE;
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printf("\nUNDONE.\n\n");
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}
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return 0;
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}
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/*
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* Ask the user whether to save the newly added row.
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*/
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int do_save (void)
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{
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char answer[10];
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printf("Save? Enter 'y' for yes, 'n' for no: ");
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gets(answer);
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return (*answer == 'y' ? 1 : 0);
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}
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/*
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* If this is not the first time this program is run,
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* the example row may already exist -- delete the example
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* row in order to avoid a duplicate value error.
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*/
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void clean_up (void)
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{
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EXEC SQL
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DELETE FROM country
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WHERE country = 'Mexico';
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EXEC SQL
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COMMIT WORK;
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}
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