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Quellcode-Bibliothek© Kompilation durch diese Firma[Weder Korrektheit noch Funktionsfähigkeit der Software werden zugesichert.]Datei: mpb003.cob Sprache: Cobol |
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IDENTIFICATION DIVISION.
PROGRAM-ID. MPB003. ENVIRONMENT DIVISION. CONFIGURATION SECTION. SOURCE-COMPUTER. xyz. OBJECT-COMPUTER. xyz. DATA DIVISION. WORKING-STORAGE SECTION. * Standard COBOL (file "MPB003.SCO") calling SQL * procedures in file "MPB003.MCO". * STANDARD COBOL (file "MPB003.SCO") **************************************************************** * * COMMENT SECTION * * DATE 1988/12/07 STANDARD COBOL LANGUAGE * NIST SQL VALIDATION TEST SUITE V6.0 * DISCLAIMER: * This program was written by employees of NIST to test SQL * implementations for conformance to the SQL standards. * NIST assumes no responsibility for any party's use of * this program. * * MPB003.SCO * WRITTEN BY: J Sullivan * * THIS PROGRAM IS PART A OF A TWO-PART PROGRAM(A & B) THAT * TESTS THE CONCURRENCY OF SQL * * REFERENCES * AMERICAN NATIONAL STANDARD database language - SQL * X3.135-1989 * * SECTION 4.16 Transactions * Paragraph Two **************************************************************** * EXEC SQL BEGIN DECLARE SECTION END-EXEC 01 dol999 PIC S9(9) DISPLAY SIGN LEADING SEPARATE. 01 dol500 PIC S9(9) DISPLAY SIGN LEADING SEPARATE. 01 dollar PIC S9(9) DISPLAY SIGN LEADING SEPARATE. 01 keyval PIC S9(9) DISPLAY SIGN LEADING SEPARATE. 01 i PIC S9(9) DISPLAY SIGN LEADING SEPARATE. 01 uid PIC X(18). 01 uidx PIC X(18). * EXEC SQL END DECLARE SECTION END-EXEC 01 SQLCODE PIC S9(9) COMP. 01 errcnt PIC S9(9) DISPLAY SIGN LEADING SEPARATE. *date_time declaration 01 TO-DAY PIC 9(6). 01 THE-TIME PIC 9(8). 01 iserr PIC S9(9) DISPLAY SIGN LEADING SEPARATE. 01 pauze PIC S9(9) DISPLAY SIGN LEADING SEPARATE. 01 tranct PIC S9(9) DISPLAY SIGN LEADING SEPARATE. 01 olddol PIC S9(9) DISPLAY SIGN LEADING SEPARATE. 01 doldif PIC S9(9) DISPLAY SIGN LEADING SEPARATE. 01 concur PIC S9(9) DISPLAY SIGN LEADING SEPARATE. 01 SQL-COD PIC S9(9) DISPLAY SIGN LEADING SEPARATE. PROCEDURE DIVISION. P0. MOVE "SULLIVAN1" TO uid CALL "AUTHID" USING uid MOVE "not logged in, not" TO uidx * EXEC SQL SELECT USER INTO :uidx FROM HU.ECCO; CALL "SUB1" USING SQLCODE uidx MOVE SQLCODE TO SQL-COD if (uid NOT = uidx) then DISPLAY "ERROR: User ", uid " expected. User ", uidx " - " connected" END-IF MOVE 0 TO errcnt DISPLAY "SQL Test Suite, V6.0, Module COBOL, mpb003.sco" DISPLAY "59-byte ID" DISPLAY "TEd Version #" *date_time print ACCEPT TO-DAY FROM DATE ACCEPT THE-TIME FROM TIME DISPLAY "Date run YYMMDD: " TO-DAY " at hhmmssff: " THE-TIME *concurrency tuning variables follow: MOVE 11 TO pauze MOVE 15 TO tranct * EXEC SQL COMMIT WORK; CALL "SUB2" USING SQLCODE MOVE SQLCODE TO SQL-COD ******************** BEGIN TEST0232 ******************* DISPLAY " TEST0232 " DISPLAY " Reference X3.135-1989 Section 4.16 Transactions - " " DISPLAY " Paragraph Two - Serializability - " " DISPLAY " UPDATE with arithmetic column expression" DISPLAY " e.g. UPDATE ... SET DOLLARS = DOLLARS + 10 - " ..." DISPLAY " - - - - - - - - - - - - - - - - - - -" DISPLAY " *** This program is part B of a two-part - " " DISPLAY " *** program (A & B) that tests for the - " concurrency " DISPLAY " *** of SQL. Program A inserts 1000 rows into " DISPLAY " *** a table and waits for Program B. - " " * -----Synchronization----- . P100. *pause a little * EXEC SQL DELETE FROM MP3_MM2; CALL "SUB3" USING SQLCODE MOVE SQLCODE TO SQL-COD MOVE 1 TO i . P101. * EXEC SQL INSERT INTO MP3_MM2 VALUES (:i); CALL "SUB4" USING SQLCODE i MOVE SQLCODE TO SQL-COD COMPUTE i = i + 1 if (i < pauze) then GO TO P101 END-IF *end of pause *are we in sync? MOVE 0 TO dollar * EXEC SQL SELECT DOLLARS * INTO :dollar * FROM MP3_NEXTKEY WHERE KEYNUM = 999; CALL "SUB5" USING SQLCODE dollar MOVE SQLCODE TO SQL-COD * EXEC SQL COMMIT WORK; CALL "SUB6" USING SQLCODE MOVE SQLCODE TO SQL-COD if (dollar = 500) then DISPLAY "This is Program B. " DISPLAY "Program A has initialized the table. " else DISPLAY "Waiting for program MPA003 to start " GO TO P100 END-IF *YES, we are in sync! DISPLAY "MPB003: account 500 has $500 and account 999 has - " $500" MOVE 0 TO doldif MOVE 0 TO concur MOVE 500 TO olddol MOVE 0 TO i * -----Concurrent Transaction Loop----- . P120. MOVE 0 TO iserr MOVE 0 TO dol999 MOVE 0 TO dol500 *start record lock * EXEC SQL UPDATE MP3_NEXTKEY * SET DOLLARS = DOLLARS + 10 WHERE KEYNUM = 999; CALL "SUB7" USING SQLCODE MOVE SQLCODE TO SQL-COD if (SQLCODE NOT = 0) then MOVE 1 TO iserr GO TO P901 END-IF * EXEC SQL UPDATE MP3_NEXTKEY * SET DOLLARS = DOLLARS - 10 WHERE KEYNUM = 500; CALL "SUB8" USING SQLCODE MOVE SQLCODE TO SQL-COD if (SQLCODE NOT = 0) then MOVE 1 TO iserr GO TO P901 END-IF * EXEC SQL SELECT DOLLARS INTO :dol500 * FROM MP3_NEXTKEY WHERE KEYNUM = 500; CALL "SUB9" USING SQLCODE dol500 MOVE SQLCODE TO SQL-COD if (SQLCODE NOT = 0) then MOVE 1 TO iserr GO TO P901 END-IF * EXEC SQL SELECT DOLLARS INTO :dol999 * FROM MP3_NEXTKEY WHERE KEYNUM = 999; CALL "SUB10" USING SQLCODE dol999 MOVE SQLCODE TO SQL-COD if (SQLCODE NOT = 0) then MOVE 1 TO iserr GO TO P901 END-IF . P901. if (iserr = 0) then * EXEC SQL COMMIT WORK; CALL "SUB11" USING SQLCODE MOVE SQLCODE TO SQL-COD DISPLAY "MPB003:account 500 has $", dol500 " and account - " 999 has $", dol999 COMPUTE doldif = olddol - dol500 MOVE dol500 TO olddol END-IF if (iserr = 1 OR SQLCODE NOT = 0) then MOVE 1 TO iserr * EXEC SQL ROLLBACK WORK; CALL "SUB12" USING SQLCODE MOVE SQLCODE TO SQL-COD COMPUTE tranct = tranct + 1 DISPLAY "ROLLBACK due to nonzero SQLCODE (Deadlock?)" END-IF if (iserr = 0 AND doldif > 10) then COMPUTE concur = concur + 1 DISPLAY " *** B interleaved #", concur END-IF *end record lock COMPUTE i = i + 1 if (i < tranct) then GO TO P120 END-IF * -----Evaluation----- . P130. MOVE 0 TO dollar * EXEC SQL SELECT SUM(DOLLARS) INTO :dollar * FROM MP3_NEXTKEY * WHERE KEYNUM = 1 OR KEYNUM = 500 OR KEYNUM = 999 * ; CALL "SUB13" USING SQLCODE dollar MOVE SQLCODE TO SQL-COD if (SQLCODE NOT = 0) then DISPLAY "Cannot select from MP3_NEXTKEY" GO TO P130 END-IF DISPLAY "MPB003: sum of accounts 1, 500, and 999 = $", dollar DISPLAY " sum should be $1500 after transferring money" if (concur < 3 AND dollar = 1500) then DISPLAY " Insufficient interleaving to demonstrate - " concurrency!" DISPLAY " Using TEd, decrease variable pauze to start" DISPLAY " MPB003 sooner or increase value of variable - " tranct" DISPLAY " in both MPA003 and MPB003 to lengthen test." DISPLAY " Then RERUN!" GO TO P140 END-IF if ( dollar = 1500) then DISPLAY "mpb003.sco: *** pass *** " * EXEC SQL INSERT INTO HU.TESTREPORT * VALUES('0232','pass','MCO'); CALL "SUB14" USING SQLCODE MOVE SQLCODE TO SQL-COD else DISPLAY "mpb003.sco: *** fail *** " * EXEC SQL INSERT INTO HU.TESTREPORT * VALUES('0232','fail','MCO'); CALL "SUB15" USING SQLCODE MOVE SQLCODE TO SQL-COD COMPUTE errcnt = errcnt + 1 END-IF . P140. DISPLAY " " DISPLAY "====================================================" * EXEC SQL COMMIT WORK; CALL "SUB16" USING SQLCODE MOVE SQLCODE TO SQL-COD ******************** END TEST0232 ******************* **** TESTER MAY CHOOSE TO INSERT CODE FOR errcnt > 0 STOP RUN. * **** Procedures for PERFORM statements ¤ Dauer der Verarbeitung: 0.23 Sekunden (vorverarbeitet) ¤ |
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