Quelle  dml144.cob   Sprache: Cobol

       IDENTIFICATION DIVISION.
       PROGRAM-ID.  DML144.
       ENVIRONMENT DIVISION.
       CONFIGURATION SECTION.
       SOURCE-COMPUTER.  xyz.
       OBJECT-COMPUTER.  xyz.
       DATA DIVISION.
       WORKING-STORAGE SECTION.


      * EMBEDDED COBOL (file "DML144.PCO")


      ****************************************************************
      *                                                              
      *                 COMMENT SECTION                              
      *                                                              
      * DATE 1995/1/25 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.
      *                                                              
      * DML144.PCO                                                    
      * WRITTEN BY:  David W. Flater                                 
      * TRANSLATED AUTOMATICALLY FROM EMBEDDED C BY CHRIS SCHANZLE
      *                                                              
      * This routine tests several string-related features that were 
      * hiding under VARCHAR.                                        
      *                                                              
      * REFERENCES                                                   
      *   FIPS PUB 127-2 14.1 Transitional SQL                       
      *   ANSI SQL-1992                                              
      *                                                              
      ****************************************************************



           EXEC SQL BEGIN DECLARE SECTION END-EXEC
       01  SQLCODE PIC S9(9) COMP.
       01  SQLSTATE PIC  X(5).
       01  uid PIC  X(18).
       01  uidx PIC  X(18).
       01  int1 PIC S9(9) DISPLAY SIGN LEADING SEPARATE.
       01  indic1 PIC S9(4) DISPLAY SIGN LEADING SEPARATE.
       01  ch1 PIC  X(10).
             EXEC SQL END DECLARE SECTION END-EXEC
       01  norm1 PIC S9(9) DISPLAY SIGN LEADING SEPARATE.
       01  norm2 PIC S9(9) DISPLAY SIGN LEADING SEPARATE.
       01  ALPNUM-TABLE VALUE IS
               "01234ABCDEFGH56789IJKLMNOPQRSTUVWXYZ".
           05  ALPNUM PIC X OCCURS 36 TIMES.
       01  NORMSQ.
           05  NORMSQX PIC X OCCURS 5 TIMES.
       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  flag PIC S9(9) DISPLAY SIGN LEADING SEPARATE.

       01  SQL-COD PIC S9(9) DISPLAY SIGN LEADING SEPARATE.

       PROCEDURE DIVISION.
       P0.

             MOVE "FLATER " 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
             EXEC SQL ROLLBACK WORK 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, dml144.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

      ******************** BEGIN TEST0834 *******************
             MOVE 1 TO flag

             DISPLAY " TEST0834 "
             DISPLAY " (static)"
             DISPLAY "References:"
             DISPLAY " F# 6 -- VARCHAR data type"
             DISPLAY " 6.6 LR.2.a -- Leveling rule relaxed by F# 6"
             DISPLAY " - - - - - - - - - - - - - - - - - - -"

             COMPUTE SQLCODE = -1
             MOVE "xxxxx" TO SQLSTATE

             DISPLAY "CREATE TABLE GRUB (C1 VARCHAR (10));"
             EXEC SQL CREATE TABLE GRUB (C1 VARCHAR (10)) END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             DISPLAY "COMMIT WORK;"
             EXEC SQL COMMIT WORK END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             COMPUTE int1 = -1
             DISPLAY "SELECT CHAR_LENGTH (EMPNAME) INTO :int1"
             DISPLAY " FROM HU.STAFF WHERE GRADE = 10;"
             EXEC SQL SELECT CHAR_LENGTH (EMPNAME) INTO :int1
               FROM HU.STAFF WHERE GRADE = 10 END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY "int1 should be 20; its value is ", int1
             if (int1  NOT =  20) then
               MOVE 0 TO flag
             END-IF

             COMPUTE int1 = -1
             DISPLAY "SELECT CHARACTER_LENGTH ('HI' || 'THERE')"
             DISPLAY " INTO :int1 FROM HU.ECCO;"
             EXEC SQL SELECT CHARACTER_LENGTH ('HI' || 'THERE')
               INTO :int1 FROM HU.ECCO END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY "int1 should be 7; its value is ", int1
             if (int1  NOT =  7) then
               MOVE 0 TO flag
             END-IF

             DISPLAY "INSERT INTO GRUB VALUES ('Hi ');"
             EXEC SQL INSERT INTO GRUB VALUES ('Hi ') END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             COMPUTE int1 = -1
             DISPLAY "SELECT CHARACTER_LENGTH (C1)"
             DISPLAY " INTO :int1 FROM GRUB;"
             EXEC SQL SELECT CHARACTER_LENGTH (C1)
               INTO :int1 FROM GRUB END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY "int1 should be 4; its value is ", int1
             if (int1  NOT =  4) then
               MOVE 0 TO flag
             END-IF

             COMPUTE int1 = -1
             DISPLAY "SELECT OCTET_LENGTH (C1)"
             DISPLAY " INTO :int1 FROM GRUB;"
             EXEC SQL SELECT OCTET_LENGTH (C1)
               INTO :int1 FROM GRUB END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY "int1 should be > 2; its value is ", int1
             if (int1  NOT >  2) then
               MOVE 0 TO flag
             END-IF

             DISPLAY "UPDATE GRUB SET C1 = NULL;"
             EXEC SQL UPDATE GRUB SET C1 = NULL END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             MOVE 50 TO indic1
             DISPLAY "SELECT CHARACTER_LENGTH (C1)"
             DISPLAY " INTO :int1:indic1 FROM GRUB;"
             EXEC SQL SELECT CHARACTER_LENGTH (C1)
               INTO :int1:indic1 FROM GRUB END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY "indic1 should be -1; its value is ", indic1
             if (indic1  NOT =  -1) then
               MOVE 0 TO flag
             END-IF

             MOVE 50 TO indic1
             DISPLAY "SELECT OCTET_LENGTH (C1)"
             DISPLAY " INTO :int1:indic1 FROM GRUB;"
             EXEC SQL SELECT OCTET_LENGTH (C1)
               INTO :int1:indic1 FROM GRUB END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY "indic1 should be -1; its value is ", indic1
             if (indic1  NOT =  -1) then
               MOVE 0 TO flag
             END-IF

             DISPLAY "ROLLBACK WORK;"
             EXEC SQL ROLLBACK WORK END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             DISPLAY "DROP TABLE GRUB CASCADE;"
             EXEC SQL DROP TABLE GRUB CASCADE END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             DISPLAY "COMMIT WORK;"
             EXEC SQL COMMIT WORK END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             if ( flag  =  1 ) then
               DISPLAY " *** pass *** "
               EXEC SQL INSERT INTO HU.TESTREPORT
                 VALUES('0834','pass','PCO') END-EXEC
               MOVE SQLCODE TO SQL-COD
             else
               DISPLAY " dml144.pco *** fail *** "
               EXEC SQL INSERT INTO HU.TESTREPORT
                 VALUES('0834','fail','PCO') END-EXEC
               MOVE SQLCODE TO SQL-COD
               COMPUTE errcnt = errcnt + 1
             END-IF

             DISPLAY "==============================================="

             EXEC SQL COMMIT WORK END-EXEC
             MOVE SQLCODE TO SQL-COD
      ******************** END TEST0834 ********************
      ******************** BEGIN TEST0835 *******************
             MOVE 1 TO flag

             DISPLAY " TEST0835 "
             DISPLAY " (static)"
             DISPLAY "References:"
             DISPLAY " F# 6 -- VARCHAR data type"
             DISPLAY " 6.7 LR.2.a -- Leveling rule relaxed by F# 6"
             DISPLAY " - - - - - - - - - - - - - - - - - - -"

             COMPUTE SQLCODE = -1
             MOVE "xxxxx" TO SQLSTATE

             DISPLAY "CREATE TABLE MOREGRUB (C1 VARCHAR (10), ID INT);"
             EXEC SQL CREATE TABLE MOREGRUB (C1 VARCHAR (10), ID INT)
             END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             DISPLAY "COMMIT WORK;"
             EXEC SQL COMMIT WORK END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             DISPLAY "CREATE VIEW X4 (S1, S2, ID) AS"
             DISPLAY " SELECT SUBSTRING (C1 FROM 6),"
             DISPLAY " SUBSTRING (C1 FROM 2 FOR 4), ID"
             DISPLAY " FROM MOREGRUB;"
             EXEC SQL CREATE VIEW X4 (S1, S2, ID) AS
               SELECT SUBSTRING (C1 FROM 6),
               SUBSTRING (C1 FROM 2 FOR 4), ID
               FROM MOREGRUB END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             DISPLAY "COMMIT WORK;"
             EXEC SQL COMMIT WORK END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT SUBSTRING (CITY FROM 4 FOR 10)"
             DISPLAY " INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed';"
             EXEC SQL SELECT SUBSTRING (CITY FROM 4 FOR 10)
               INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed' END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
           DISPLAY "ch1 should be 'on '; its value is '" ch1 "'"
             if (ch1  NOT  =   "on ") then
               MOVE 0 TO flag
             END-IF

             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT SUBSTRING (CITY FROM 4)"
             DISPLAY " INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed';"
             EXEC SQL SELECT SUBSTRING (CITY FROM 4)
               INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed' END-EXEC
             MOVE SQLCODE TO SQL-COD
             DISPLAY "SQLCODE should be >= 0; its value is ", SQL-COD
             DISPLAY "SQLSTATE should be 01004; its value is ", SQLSTATE
             if (SQLCODE  <  0  OR  SQLSTATE  NOT  =   "01004") then
               MOVE 0 TO flag
             END-IF
           DISPLAY "ch1 should be 'on '; its value is '" ch1 "'"
             if (ch1  NOT  =   "on ") then
               MOVE 0 TO flag
             END-IF

      *6.7 GR.1.d 

             DISPLAY "SELECT SUBSTRING (CITY FROM 4 FOR -1)"
             DISPLAY " INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed';"
             EXEC SQL SELECT SUBSTRING (CITY FROM 4 FOR -1)
               INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed' END-EXEC
             MOVE SQLCODE TO SQL-COD
             DISPLAY "SQLCODE should be < 0; its value is ", SQL-COD
             DISPLAY "SQLSTATE should be 22011; its value is ", SQLSTATE
             if (SQLCODE  NOT <  0  OR  SQLSTATE  NOT  =   "22011") then
               MOVE 0 TO flag
             END-IF

      *6.7 GR.1.e.ii.1 (let S1 be the larger of S and 1) 

             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT SUBSTRING (CITY FROM 0 FOR 10)"
             DISPLAY " INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed';"
             EXEC SQL SELECT SUBSTRING (CITY FROM 0 FOR 10)
               INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed' END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
           DISPLAY "ch1 should be 'Akron '; its value is '" ch1 "'"
             if (ch1  NOT  =   "Akron ") then
               MOVE 0 TO flag
             END-IF

      *6.7 GR.1.e.ii 

             MOVE 4 TO int1
             DISPLAY "int1 is ", int1
             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT SUBSTRING (CITY FROM :int1 FOR 100)"
             DISPLAY " INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed';"
             EXEC SQL SELECT SUBSTRING (CITY FROM :int1 FOR 100)
               INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed' END-EXEC
             MOVE SQLCODE TO SQL-COD
             DISPLAY "SQLCODE should be >= 0; its value is ", SQL-COD
             DISPLAY "SQLSTATE should be 01004; its value is ", SQLSTATE
             if (SQLCODE  <  0  OR  SQLSTATE  NOT  =   "01004") then
               MOVE 0 TO flag
             END-IF
           DISPLAY "ch1 should be 'on '; its value is '" ch1 "'"
             if (ch1  NOT  =   "on ") then
               MOVE 0 TO flag
             END-IF

             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT SUBSTRING (CITY FROM 1 FOR 1)"
             DISPLAY " INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed';"
             EXEC SQL SELECT SUBSTRING (CITY FROM 1 FOR 1)
               INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed' END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
           DISPLAY "ch1 should be 'A '; its value is '" ch1 "'"
             if (ch1  NOT  =   "A ") then
               MOVE 0 TO flag
             END-IF

      *6.7 GR.1.e.i 

             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT SUBSTRING (CITY FROM 1 FOR 0)"
             DISPLAY " INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed';"
             EXEC SQL SELECT SUBSTRING (CITY FROM 1 FOR 0)
               INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed' END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
           DISPLAY "ch1 should be ' '; its value is '" ch1 "'"
             if (ch1  NOT  =   " ") then
               MOVE 0 TO flag
             END-IF

      *6.7 GR.1.e.i 

             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT SUBSTRING (CITY FROM 12 FOR 1)"
             DISPLAY " INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed';"
             EXEC SQL SELECT SUBSTRING (CITY FROM 12 FOR 1)
               INTO :ch1 FROM HU.STAFF WHERE EMPNAME = 'Ed' END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
           DISPLAY "ch1 should be ' '; its value is '" ch1 "'"
             if (ch1  NOT  =   " ") then
               MOVE 0 TO flag
             END-IF

             DISPLAY "INSERT INTO MOREGRUB VALUES ('Pretzels', 1);"
             EXEC SQL INSERT INTO MOREGRUB VALUES ('Pretzels', 1)
             END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             DISPLAY "INSERT INTO MOREGRUB VALUES (NULL, 2);"
             EXEC SQL INSERT INTO MOREGRUB VALUES (NULL, 2) END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             DISPLAY "INSERT INTO MOREGRUB VALUES ('Chips', 3);"
             EXEC SQL INSERT INTO MOREGRUB VALUES ('Chips', 3) END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT S1 INTO :ch1"
             DISPLAY " FROM X4 WHERE ID = 1;"
             EXEC SQL SELECT S1 INTO :ch1
               FROM X4 WHERE ID = 1 END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
           DISPLAY "ch1 should be 'els '; its value is '" ch1 "'"
             if (ch1  NOT  =   "els ") then
               MOVE 0 TO flag
             END-IF

             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT S1 INTO :ch1"
             DISPLAY " FROM X4 WHERE ID = 3;"
             EXEC SQL SELECT S1 INTO :ch1
               FROM X4 WHERE ID = 3 END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
           DISPLAY "ch1 should be ' '; its value is '" ch1 "'"
             if (ch1  NOT  =   " ") then
               MOVE 0 TO flag
             END-IF

             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT S2 INTO :ch1"
             DISPLAY " FROM X4 WHERE ID = 1;"
             EXEC SQL SELECT S2 INTO :ch1
               FROM X4 WHERE ID = 1 END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
           DISPLAY "ch1 should be 'retz '; its value is '" ch1 "'"
             if (ch1  NOT  =   "retz ") then
               MOVE 0 TO flag
             END-IF

             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT S2 INTO :ch1"
             DISPLAY " FROM X4 WHERE ID = 3;"
             EXEC SQL SELECT S2 INTO :ch1
               FROM X4 WHERE ID = 3 END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
           DISPLAY "ch1 should be 'hips '; its value is '" ch1 "'"
             if (ch1  NOT  =   "hips ") then
               MOVE 0 TO flag
             END-IF

      *Column references 

             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT SUBSTRING (C1 FROM ID)"
             DISPLAY " INTO :ch1 FROM MOREGRUB"
             DISPLAY " WHERE C1 LIKE 'Ch%';"
             EXEC SQL SELECT SUBSTRING (C1 FROM ID)
               INTO :ch1 FROM MOREGRUB
               WHERE C1 LIKE 'Ch%' END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
           DISPLAY "ch1 should be 'ips '; its value is '" ch1 "'"
             if (ch1  NOT  =   "ips ") then
               MOVE 0 TO flag
             END-IF

             MOVE "qqqqqqqqqq" TO ch1
             DISPLAY "SELECT SUBSTRING (C1 FROM 1 FOR ID)"
             DISPLAY " INTO :ch1 FROM MOREGRUB"
             DISPLAY " WHERE C1 LIKE 'Ch%';"
             EXEC SQL SELECT SUBSTRING (C1 FROM 1 FOR ID)
               INTO :ch1 FROM MOREGRUB
               WHERE C1 LIKE 'Ch%' END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
           DISPLAY "ch1 should be 'Chi '; its value is '" ch1 "'"
             if (ch1  NOT  =   "Chi ") then
               MOVE 0 TO flag
             END-IF

             MOVE "salsa " TO ch1
             MOVE 8 TO int1
             DISPLAY "int1 is ", int1 " and ch1 is ", ch1
             DISPLAY "SELECT SUBSTRING (C1 || ' with ' || :ch1"
             DISPLAY " FROM 4 FOR :int1 + 1)"
             DISPLAY " INTO :ch1 FROM MOREGRUB"
             DISPLAY " WHERE C1 LIKE 'Ch%';"
             EXEC SQL SELECT SUBSTRING (C1 || ' with ' || :ch1
               FROM 4 FOR :int1 + 1)
               INTO :ch1 FROM MOREGRUB
               WHERE C1 LIKE 'Ch%' END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
           DISPLAY "ch1 should be 'ps with s '; its value is '" ch1 "'"
             if (ch1  NOT  =   "ps with s ") then
               MOVE 0 TO flag
             END-IF

      *6.7 GR.1.c (brutal null column references) 

             MOVE 19 TO indic1
             DISPLAY "SELECT S1 INTO :ch1:indic1"
             DISPLAY " FROM X4 WHERE ID = 2;"
             EXEC SQL SELECT S1 INTO :ch1:indic1
               FROM X4 WHERE ID = 2 END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY "indic1 should be -1; its value is ", indic1
             if (indic1  NOT =  -1) then
               MOVE 0 TO flag
             END-IF

             DISPLAY "DELETE FROM MOREGRUB;"
             EXEC SQL DELETE FROM MOREGRUB END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             DISPLAY "INSERT INTO MOREGRUB VALUES ('Tacos', NULL);"
             EXEC SQL INSERT INTO MOREGRUB VALUES ('Tacos', NULL)
             END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

      *Future work:  test the following cases in a view too 

             MOVE 19 TO indic1
             DISPLAY "SELECT SUBSTRING (C1 FROM 1 FOR ID)"
             DISPLAY " INTO :ch1:indic1 FROM MOREGRUB;"
             EXEC SQL SELECT SUBSTRING (C1 FROM 1 FOR ID)
               INTO :ch1:indic1 FROM MOREGRUB END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY "indic1 should be -1; its value is ", indic1
             if (indic1  NOT =  -1) then
               MOVE 0 TO flag
             END-IF

             MOVE 19 TO indic1
             DISPLAY "SELECT SUBSTRING (C1 FROM ID FOR 1)"
             DISPLAY " INTO :ch1:indic1 FROM MOREGRUB;"
             EXEC SQL SELECT SUBSTRING (C1 FROM ID FOR 1)
               INTO :ch1:indic1 FROM MOREGRUB END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY "indic1 should be -1; its value is ", indic1
             if (indic1  NOT =  -1) then
               MOVE 0 TO flag
             END-IF

             DISPLAY "UPDATE MOREGRUB SET C1 = NULL;"
             EXEC SQL UPDATE MOREGRUB SET C1 = NULL END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             MOVE 19 TO indic1
             DISPLAY "SELECT SUBSTRING (C1 FROM ID FOR ID)"
             DISPLAY " INTO :ch1:indic1 FROM MOREGRUB;"
             EXEC SQL SELECT SUBSTRING (C1 FROM ID FOR ID)
               INTO :ch1:indic1 FROM MOREGRUB END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY "indic1 should be -1; its value is ", indic1
             if (indic1  NOT =  -1) then
               MOVE 0 TO flag
             END-IF

             DISPLAY "ROLLBACK WORK;"
             EXEC SQL ROLLBACK WORK END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             DISPLAY "DROP TABLE MOREGRUB CASCADE;"
             EXEC SQL DROP TABLE MOREGRUB CASCADE END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             DISPLAY "COMMIT WORK;"
             EXEC SQL COMMIT WORK END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             if ( flag  =  1 ) then
               DISPLAY " *** pass *** "
               EXEC SQL INSERT INTO HU.TESTREPORT
                 VALUES('0835','pass','PCO') END-EXEC
               MOVE SQLCODE TO SQL-COD
             else
               DISPLAY " dml144.pco *** fail *** "
               EXEC SQL INSERT INTO HU.TESTREPORT
                 VALUES('0835','fail','PCO') END-EXEC
               MOVE SQLCODE TO SQL-COD
               COMPUTE errcnt = errcnt + 1
             END-IF

             DISPLAY "==============================================="

             EXEC SQL COMMIT WORK END-EXEC
             MOVE SQLCODE TO SQL-COD
      ******************** END TEST0835 ********************
      ******************** BEGIN TEST0839 *******************
             MOVE 1 TO flag

             DISPLAY " TEST0839 "
             DISPLAY " Composed and SUBSTRING"
             DISPLAY "References:"
             DISPLAY " F# 6 -- VARCHAR data type"
             DISPLAY " 6.6 LR.2.a -- Leveling rule relaxed by F# 6"
             DISPLAY " - - - - - - - - - - - - - - - - - - -"

             COMPUTE SQLCODE = -1
             MOVE "xxxxx" TO SQLSTATE

             COMPUTE int1 = -1
             DISPLAY "SELECT CHAR_LENGTH (SUBSTRING"
             DISPLAY " (CITY FROM 4 FOR 4)) INTO :int1"
             DISPLAY " FROM HU.STAFF WHERE EMPNAME = 'Ed';"
             EXEC SQL SELECT CHAR_LENGTH (SUBSTRING
               (CITY FROM 4 FOR 4)) INTO :int1
               FROM HU.STAFF WHERE EMPNAME = 'Ed' END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY "int1 should be 4; its value is ", int1
             if (int1  NOT =  4) then
               MOVE 0 TO flag
             END-IF

             COMPUTE int1 = -1
             DISPLAY "SELECT CHARACTER_LENGTH (SUBSTRING"
             DISPLAY " (EMPNUM FROM 1)) INTO :int1"
             DISPLAY " FROM HU.STAFF WHERE EMPNAME = 'Ed';"
             EXEC SQL SELECT CHARACTER_LENGTH (SUBSTRING
               (EMPNUM FROM 1)) INTO :int1
               FROM HU.STAFF WHERE EMPNAME = 'Ed' END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY "int1 should be 3; its value is ", int1
             if (int1  NOT =  3) then
               MOVE 0 TO flag
             END-IF

             DISPLAY "COMMIT WORK;"
             EXEC SQL COMMIT WORK END-EXEC
             MOVE SQLCODE TO SQL-COD
           PERFORM CHCKOK
             DISPLAY  " "

             if ( flag  =  1 ) then
               DISPLAY " *** pass *** "
               EXEC SQL INSERT INTO HU.TESTREPORT
                 VALUES('0839','pass','PCO') END-EXEC
               MOVE SQLCODE TO SQL-COD
             else
               DISPLAY " dml144.pco *** fail *** "
               EXEC SQL INSERT INTO HU.TESTREPORT
                 VALUES('0839','fail','PCO') END-EXEC
               MOVE SQLCODE TO SQL-COD
               COMPUTE errcnt = errcnt + 1
             END-IF

             DISPLAY "==============================================="

             EXEC SQL COMMIT WORK END-EXEC
             MOVE SQLCODE TO SQL-COD
      ******************** END TEST0839 ********************
      **** TESTER MAY CHOOSE TO INSERT CODE FOR errcnt > 0
           STOP RUN.

      *    ****  Procedures for PERFORM statements

      *Test SQLCODE and SQLSTATE for normal completion. 
       CHCKOK.
             DISPLAY "SQLCODE should be 0; its value is ", SQL-COD
             DISPLAY "SQLSTATE should be 00000; its value is ", SQLSTATE
             PERFORM NOSUBCLASS THRU EXIT-NOSUBCLASS
             if (SQLCODE NOT =  0  OR   NORMSQ NOT = "00000") then
               MOVE 0 TO flag
             END-IF
             if (NORMSQ = "00000"  AND  NORMSQ NOT = SQLSTATE)
             then
               DISPLAY "Valid implementation-defined SQLSTATE accepted."
             END-IF
             .

       NOSUBCLASS.

      *This routine replaces valid implementation-defined       
      *subclasses with 000.  This replacement equates valid     
      *implementation-defined subclasses with the 000 value     
      *expected by the test case; otherwise the test will fail. 
      *After calling NOSUBCLASS, NORMSQ will be tested          
      *                          SQLSTATE will be printed.      

           MOVE SQLSTATE TO NORMSQ

           MOVE 3 TO norm1
      *subclass begins in position 3 of char array NORMSQ 
      *valid subclass begins with 5-9, I-Z, end of ALPNUM table 
           PERFORM VARYING norm2 FROM 14 BY 1 UNTIL norm2 > 36
           if (NORMSQX(norm1)  =  ALPNUM(norm2)) then
             MOVE "0" TO NORMSQX(norm1)
           END-IF
           END-PERFORM
           
      *Quit if NORMSQ is unchanged.  Subclass is not impl.-def. 
      *Changed NORMSQ means implementation-defined subclass,    
      *so proceed to zero it out, if valid (0-9,A-Z)            
           if (NORMSQ   =   SQLSTATE) then
             GO TO EXIT-NOSUBCLASS
           END-IF

           MOVE 4 TO norm1
      *examining position 4 of char array NORMSQ 
      *valid characters are 0-9, A-Z 
           PERFORM VARYING norm2 FROM 1 BY 1 UNTIL norm2 > 36
           if (NORMSQX(norm1)  =  ALPNUM(norm2)) then
             MOVE "0" TO NORMSQX(norm1)
           END-IF
           END-PERFORM
          
           MOVE 5 TO norm1
      *valid characters are 0-9, A-Z 
      *examining position 5 of char array NORMSQ 
           PERFORM VARYING norm2 FROM 1 BY 1 UNTIL norm2 > 36
           if (NORMSQX(norm1)  =  ALPNUM(norm2)) then
             MOVE "0" TO NORMSQX(norm1)
           END-IF
           END-PERFORM
   
      *implementation-defined subclasses are allowed for warnings 
      *(class = 01).  These equate to successful completion 
      *SQLSTATE values of 00000. 
      *Reference SQL-92 4.28 SQL-transactions, paragraph 2 

           if (NORMSQX(1)  =  "0"  AND  NORMSQX(2)  =  "1") then
             MOVE "0" TO NORMSQX(2)
           END-IF
           .

       EXIT-NOSUBCLASS.
           EXIT.