Problem summary: J-ODBC access to MySQL DB failing Environment: Windows XP Pro SP 3(32bit) , Dell 1710 Core Duo, 2GB RAM, 32bit J602a/2008-03-03/16:45, Library 6.02.051, 32 bit MySQL 4.0.1
Overview: 1) Trying to use J & ODBC to read a MySQL DB (62 tables, 6000 records in most populous table). This MySQL DB is a production database for a small commercial application. 2) Created ODBC DSN for MySQL DB 3) Performed 3 successful 'control' tests; connected thru ODBC DSN to MySQL DB & read tables using OpenOffice Base, MS Access 2003, & lastly Python 2.7 + PyODBC; This implies (to me) the MySQL ODBC interface is working properly. 4) Also executed J ODBC with J provided sample (MS Access)...worked as expected. 5) With the MySQL DB successfully used the J ODBC lab statements: ch=:ddcon 'dsn=tablename' , dderr '' , ddtblx ch 5) A 'crash' occurs after execution of: 'tablename' ddcol ch . This happens with all the tables I tried. 6) Windows XP displays the message: J has encountered a problem and needs to close. We are sorry for the inconvenience. 7) The Error Signature is: AppName: j.exe AppVer: 6.0.2.0 ModName: myodbc3.dll ModVer: 3.51.27.0 Offset: 000128a0 In other tests I avoided the expression: 'tablename' ddcol ch Instead the following was executed with results reproduced here: sh =: 'select * from tablename' ddsel ch dderr '' ]dat =: ddfch sh,10 _1 dderr '' ISI10 Unable to bind all columns - more error info available (2) This error appears for all except 6 of the 40 tables I tried. These 6 tables work properly with the expression: sh =: 'select * from tablename' ddsel ch I scanned the column definitions for all the tables looking for a pattern to the failures / successes; didn't see any pattern. Any suggestions on how to proceed are very welcome. Thank you. --Chris-- ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
