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Resolved Problem with EXECUTE IMMEDIATE when running as WEB
  1. Issue
0 Votes
  1. Sylvain .
  2. PowerServer Obsolete (2020 or older)
  3. Thursday, 22 November 2018 07:36 PM UTC

I have put an example of the code use to duplicate the problem at the end of the message.

when I execute it as PB it is running fine, when I tried to execute it as WEB it will execute

up to the INSERT where it will give me the following error in a message box:

      Error 10999

      Nested transactions are not supported.

any INSERT, UPDATE, DELETE will give me the same error.

I'm running this using a MySQL client 5.3 on a MySQL 8 Database.

Anyone have an idea on why this is occurring, any help would be appreciated.

TIA

Sylvain

 

Code in  the Open event of the Application object:

string ls_SQL, ls_REP

 SQLCA.DBMS   = "ODBC"
 SQLCA.DBParm  = "ConnectString='DSN=MySQL'"
 Connect Using SQLCA;
  
 ls_SQL = "SET SESSION AUTOCOMMIT = 0"
 EXECUTE IMMEDIATE :ls_SQL USING SQLCA;
 
 ls_SQL = "SET SESSION SQL_SAFE_UPDATES = 0"
 EXECUTE IMMEDIATE :ls_SQL USING SQLCA;
 
 ls_SQL = "SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED"
 EXECUTE IMMEDIATE :ls_SQL USING SQLCA;
 
 ls_REP = ""
 ls_SQL = "SELECT fn_DB_Connected_PB(-2, ' ', ' ', ' ', 'PB', 'E', ' ')"
 DECLARE    l_cursor DYNAMIC CURSOR FOR SQLSA ;
 PREPARE SQLSA FROM :ls_sql USING SQLCA ;
 OPEN DYNAMIC l_cursor ;
 FETCH    l_cursor INTO :ls_REP ;
 CLOSE    l_cursor ;
 
// to make sure that no transaction is pending
 COMMIT   Using SQLCA;
 
 ls_SQL = "INSERT INTO SU_REMEMBER ( USER_ID, SYSTEM_ID, COMMAND_ID, REMEMBER_ID, REMEMBER_VALUE ) VALUES ( 23456, 'GL', 'QUERY', 'DATE_FROM', '2018-01-01' ) "
// the error will occurs on that statement
 EXECUTE IMMEDIATE :ls_SQL USING SQLCA;
 
 ROLLBACK   Using SQLCA;
 DISConnect Using SQLCA;
 
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