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IDENTIFICATION DIVISION.
PROGRAM-ID. MPA001.
ENVIRONMENT DIVISION.
CONFIGURATION SECTION.
SOURCE-COMPUTER. xyz.
OBJECT-COMPUTER. xyz.
DATA DIVISION.
WORKING-STORAGE SECTION.
* EMBEDDED COBOL (file "MPA001.PCO")
****************************************************************
*
* COMMENT SECTION
*
* DATE 1988/12/07 EMBEDDED 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.
*
* MPA001.PCO
* WRITTEN BY: S HURWITZ
*
* 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 i PIC S9(9) DISPLAY SIGN LEADING SEPARATE.
01 ii PIC S9(9) DISPLAY SIGN LEADING SEPARATE.
01 knum PIC S9(9) DISPLAY SIGN LEADING SEPARATE.
01 newmax PIC S9(9) DISPLAY SIGN LEADING SEPARATE.
01 auth PIC X(1).
01 uid PIC X(18).
01 uidx PIC X(18).
EXEC SQL END DECLARE SECTION END-EXEC
01 code1 PIC S9(9) DISPLAY SIGN LEADING SEPARATE.
01 oldkey PIC S9(9) DISPLAY SIGN LEADING SEPARATE.
01 keydif PIC S9(9) DISPLAY SIGN LEADING SEPARATE.
01 concur PIC S9(9) DISPLAY SIGN LEADING SEPARATE.
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 pauze PIC S9(9) DISPLAY SIGN LEADING SEPARATE.
01 keymax 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 END-EXEC
MOVE SQLCODE TO SQL-COD
if (uid NOT = uidx) then
DISPLAY "ERROR: User ", uid " expected. User ", uidx "
- " connected"
STOP RUN
END-IF
MOVE 0 TO errcnt
DISPLAY
"SQL Test Suite, V6.0, Embedded COBOL, mpa001.pco"
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 10 TO pauze
MOVE 50 TO keymax
EXEC SQL COMMIT WORK END-EXEC
MOVE SQLCODE TO SQL-COD
******************** BEGIN TEST0230 *******************
DISPLAY " TEST0230 "
DISPLAY " Reference X3.135-1989 Section 4.16 Transactions
- " "
DISPLAY " Paragraph Two "
DISPLAY " - - - - - - - - - - - - - - - - - - -"
DISPLAY "*** This program is part A of a two-part
- " "
DISPLAY "*** program (A & B) that tests for the concurrency
- " "
DISPLAY "*** of SQL. Program A inserts the first value
- " into "
DISPLAY "*** a table and waits for Program B.
- " "
DISPLAY " This is Program A which starts first and
- " waits.... "
* -----Initialization-----
.
P100.
MOVE 0 TO code1
EXEC SQL DELETE FROM MP1_NEXTKEY END-EXEC
MOVE SQLCODE TO SQL-COD
if (SQLCODE < 0) then
MOVE 1 TO code1
END-IF
EXEC SQL INSERT
INTO MP1_NEXTKEY (KEYNUM,AUTHOR)
VALUES (1,'A') END-EXEC
MOVE SQLCODE TO SQL-COD
if (SQLCODE NOT = 0) then
MOVE 1 TO code1
END-IF
DISPLAY " MPA001: keynum = 1 "
EXEC SQL COMMIT WORK END-EXEC
MOVE SQLCODE TO SQL-COD
if (SQLCODE NOT = 0) then
MOVE 1 TO code1
END-IF
if (code1 = 1) then
DISPLAY "Cannot initialize MP1_NEXTKEY"
GO TO P100
END-IF
* -----Synchronization-----
.
P101.
*pause a little
EXEC SQL DELETE FROM MP1_NN END-EXEC
MOVE SQLCODE TO SQL-COD
MOVE 0 TO i
.
P102.
EXEC SQL INSERT INTO MP1_NN VALUES (:i) END-EXEC
MOVE SQLCODE TO SQL-COD
COMPUTE i = i + 1
if (i < pauze) then
GO TO P102
END-IF
*end of pause
MOVE 0 TO knum
EXEC SQL SELECT COUNT(*)
INTO :knum
FROM MP1_NEXTKEY WHERE AUTHOR = 'B' END-EXEC
MOVE SQLCODE TO SQL-COD
EXEC SQL COMMIT WORK END-EXEC
MOVE SQLCODE TO SQL-COD
*are we in sync?
if (knum = 0) then
DISPLAY " PLEASE start program MPB001!!! "
GO TO P101
END-IF
*YES, we are in sync!
MOVE 0 TO keydif
MOVE 0 TO oldkey
MOVE 0 TO concur
* -----Concurrent Transaction Loop-----
.
P110.
*start table lock
EXEC SQL SELECT MAX(KEYNUM)
INTO :newmax
FROM MP1_NEXTKEY END-EXEC
MOVE SQLCODE TO SQL-COD
if (SQLCODE NOT = 0) then
DISPLAY " SQLCODE not zero in SELECT MAX(KEYNUM)
- " statement "
DISPLAY " SQLCODE = ", SQL-COD " "
EXEC SQL COMMIT WORK END-EXEC
MOVE SQLCODE TO SQL-COD
GO TO P110
END-IF
if (newmax NOT < keymax) then
GO TO P120
END-IF
COMPUTE newmax = newmax + 1
MOVE 0 TO code1
EXEC SQL INSERT
INTO MP1_NEXTKEY (KEYNUM,AUTHOR)
VALUES (:newmax,'A') END-EXEC
MOVE SQLCODE TO SQL-COD
if (SQLCODE NOT = 0) then
MOVE 1 TO code1
END-IF
EXEC SQL COMMIT WORK END-EXEC
MOVE SQLCODE TO SQL-COD
if (SQLCODE NOT = 0) then
MOVE 1 TO code1
END-IF
*end table lock
if (code1 = 0) then
DISPLAY " MPA001: keynum = ", newmax " "
COMPUTE keydif = newmax - oldkey
MOVE newmax TO oldkey
END-IF
if (code1 = 0 AND keydif > 1) then
COMPUTE concur = concur + 1
DISPLAY " *** A interleaved #", concur "***"
END-IF
GO TO P110
* -----Evaluation-----
.
P120.
EXEC SQL COMMIT WORK END-EXEC
EXEC SQL SELECT COUNT(*)
INTO :i
FROM MP1_NEXTKEY END-EXEC
MOVE SQLCODE TO SQL-COD
if (SQLCODE NOT = 0) then
DISPLAY " Cannot select for MP1_NEXTKEY"
GO TO P120
END-IF
EXEC SQL SELECT COUNT(DISTINCT KEYNUM)
INTO :ii
FROM MP1_NEXTKEY END-EXEC
MOVE SQLCODE TO SQL-COD
if (SQLCODE NOT = 0) then
DISPLAY " Cannot select for MP1_NEXTKEY!"
GO TO P120
END-IF
DISPLAY " The number of rows should be ", keymax " "
DISPLAY " The number of distinct keynum values should be ",
keymax " "
DISPLAY " The number of rows = ", i " "
DISPLAY " The number of distinct keynum values = ", ii "
- " "
if (concur < 4 AND i = ii AND ii = keymax) then
DISPLAY " Insufficient interleaving to demonstrate
- " concurrency!"
DISPLAY " Using TEd, decrease variable pauze to start"
DISPLAY " MPA001 sooner or increase value of variable
- " keymax"
DISPLAY " in both MPA001 and MPB001 to lengthen test."
DISPLAY " Then RERUN!"
GO TO P130
END-IF
if ( i = ii AND ii = keymax) then
DISPLAY "mpa001.pco: *** pass *** "
EXEC SQL INSERT INTO HU.TESTREPORT
VALUES('0230','pass','PCO') END-EXEC
MOVE SQLCODE TO SQL-COD
else
DISPLAY "mpa001.pco: *** fail *** "
EXEC SQL INSERT INTO HU.TESTREPORT
VALUES('0230','fail','PCO') END-EXEC
MOVE SQLCODE TO SQL-COD
COMPUTE errcnt = errcnt + 1
END-IF
.
P130.
DISPLAY " "
DISPLAY
"===================================================="
EXEC SQL COMMIT WORK END-EXEC
MOVE SQLCODE TO SQL-COD
******************** END TEST0230 *******************
**** TESTER MAY CHOOSE TO INSERT CODE FOR errcnt > 0
STOP RUN.
* **** Procedures for PERFORM statements
¤ Dauer der Verarbeitung: 0.21 Sekunden
(vorverarbeitet)
¤
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