Db2 Sql Fetch Error
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Oracle Sql Fetch
Checkpoint Facility Batch Healthcare - Deadlock Advisor SoftDate RESOURCES Resources Overview DB2 SQL select top 1 db2 Error Codes White Papers Case Studies Educational Videos PARTNERS Partners Overview Partner List Becoming a Partner Register a Prospect db2 sql error codes NEWS News Releases SUPPORT Support Overview Support Login Product Compatibility BLOG Baseline Posts Baseline Videos ABOUT US About SoftBase People Careers Legal Privacy Area Info Contact Info Contact Us Home Resources DB2 http://www.ibm.com/support/knowledgecenter/SSEPEK_11.0.0/codes/src/tpc/db2z_n.html SQL Error Codes DB2 SQL Error Codes SQL return codes provided by DB2 UDB for OS/390 and z/OS can be confusing and often reference manuals are not available or close at hand when you really need them. This reference will review SQL return code processing and common SQL error condition codes you may encounter in DB2. SQL Error Code Lookup Retrieving SQL https://www.softbase.com/error_codes.php Return Code Information & Messages COBOL programs executing SQL statements communicate with DB2 via a Working Storage area called the SQL Communications Area (SQLCA). When DB2 executes SQL statements, it returns the results of the operation into the SQLCODE and SQLSTATE fields in the SQLCA. SQLCODE provides key information about the success or failure of SQL statement execution. If the SQLWARNO field in the SQLCA contains 'W', DB2 has set at least one of the SQL warning flags (SQLWARN1 through SQLWARNA). These flags provide additional info about execution of specific types of SQL. Prior to DB2 V8, COBOL programs could call a subroutine called DSNTIAR that would convert a SQLCODE in the SQLCA into more a detailed text message with diagnostics about the return code. New with DB2 V8, COBOL programs can now execute a GET DIAGNOSTICS statement that will return all previous SQLCA values and provide additional information about new DB2 V8 extended object names and new SQL functions. The new GET DIAGNOSTICS function replaces existing SQLCA processing now found in most DB2 COBOL programs. GET DIAGNOSTICS also passes a text message about SQLCODE directly to programs. SQLCO
feature of DB2 programs is the error processing. The error diagnostic containing the SQL Return Code is held in the field SQLCODE within the https://en.wikipedia.org/wiki/DB2_SQL_return_codes DB2 SQLCA block. SQLCODE is no longer part of the SQL-standard. The SQL-standard replaced SQLCODE by the more detailed SQLSTATE. Contents 1 SQLCA 2 SQLCODE 2.1 Zero (Successful) 2.2 Negative values http://www.itjungle.com/fhg/fhg052009-story01.html (Errors) 2.3 Positive Values (Warnings) 3 References SQLCA[edit] The SQL communications area (SQLCA) structure is used within the DB2 program to return error information to the application program. This information in the db2 sql SQLCA and the SQLCODE field is updated after every API call for the SQL statement... SQLCA contains ERROR HANDLING data SQLCODE[edit] The SQLCODE field contains the SQL return code. The code can be zero (0), negative or positive. 0 means successful execution. Negative means unsuccessful with an error. An example is -911 which means a timeout has occurred with a rollback. Positive means db2 sql fetch successful execution with a warning. An example is +100 which means no rows found or end of table Here is a more comprehensive list of the SQLCODEs for DB2: Zero (Successful)[edit] 0 Successful Negative values (Errors)[edit] -007 The specified 'character' is not a valid character in SQL statements. -010 THE string constant beginning with string is not terminated properly. -029 INTO Clause required. -060 INVALID type SPECIFICATION: spec -084 Unacceptable SQL statement. -101 The statement is too long or too complex. -102 String constant is too long. -104 Illegal symbol encountered in the SQL statement. -117 The number of values in the INSERT does not match the number of columns. -122 Column or Expression in the Select List is not valid -180 Bad data in Date/Time/Timestamp. -181 Bad data in Date/Time/Timestamp. -188 The host variable in a DESCRIBE statement is not a valid string representation of a name. -199 Illegal use of the specified keyword. -204 Object not defined to DB2. -205 Column name not in table. -206 Column does not exist in any table of the SELECT. -208 THE ORDER BY CLAUSE IS INVALID BECAUSE COLUM
retrieving one row or multiple rows with one fetch. Does fetching more than one row at a time improve program performance? --Neil I'd like to think it does, Neil. It seems to me it should. Here are the comments of John, a reader who claims that a multiple-row fetch is appreciably faster. I have used fetch with multiple-occurrence data structures in order to read multiple records at once and minimize the use of FETCH in the program. The execution of a FETCH is quite resource intensive and slow. I have found 50 to 100 rows quite effective. Trust me. It makes a massive difference in execution time. In programming terms I wrote a read subroutine that managed the data structure occurrence and executed FETCH only when I had run out of occurrences. It hid the mechanics of end of file and data handling from the main routines. I ran a little test, just to see what I might discover. First, here's a simple single-fetch program. H option(*srcstmt:*nodebugio) Fqsysprt o f 132 printer D Transaction ds qualified inz D Batch 3p 0 D Code 2a D Order 7a D Item 15a D Warehouse 3a D Quantity 11p 3 D SqlEof c const('02000') D DetailLine s 132a D Print pr D Data 132a value D/copy prototypes,assert /free *inlr = *on; exec sql declare Input cursor for select batch, tcode, ordno, itnbr, house, trqty from imhist order by prqoh desc; exec sql open Input; assert (sqlstt=*zeros: 'Open error'); dow '1'; exec sql fetch next from Input into :Transaction; assert (sqlstt <= SqlEof: 'Fetch error'); if sqlstt >= SqlEof; leave; endif; Print (%editc(Transaction.Batch:'3') + ' ' + Transaction.Code + ' ' + Transaction.Order + ' ' + Transaction.Item + ' ' + Transaction.Warehouse + ' ' + %editc(Transaction.Quantity:'J')); enddo; return; /end-free Oqsysprt e PrintLine 1 O DetailLine * ========================================================== P Print b D pi D Data 132a value /free DetailLine = Data; except PrintLine; /end-free P e Here's the same program, with a multiple-row fetch into an array data structure. H option(*srcstmt:*nodebugio) Fqsysprt o f 132 printer D ArraySize s 10i 0 inz(100) D Transaction ds qualified inz dim(