I would like to wrap my updates top MySQL in transactions.
Use InnoDB tables.
PB
[EMAIL PROTECTED] wrote:
I apologize if you saw this on the MySQL Forums but I have not gotten a
response... Thanks for your help...
I know this is probably a stupid question but I could use a nudge in the right
direction.
I would like to wrap my updates top MySQL in transactions. I am using ODBC as
my means of communication (Visual FoxPro is the front end) and passing SQL
statements off to the server one Execute at a time.
I understand how I could do this with a stored procedure, or possibly even ADO,
but I would prefer to send it one command at a time for various reasons.
When I send the following series of commands through, though, it doesn't work
although each statement tells me that it executed properly:
*-- Set the connection string
ConnectionString = "DRIVER={MySQL ODBC 3.51 Driver};SERVER=localhost;" + ;
"DATABASE=test;" + ;
"USER=test;"+;
"PASSWORD=test;"+;
"OPTION=3;"
lnHandle = SQLSTRINGCONNECT(ConnectionString) &&Get the connection
? lnHandle &&Check the connection to make sure it worked.
lcSQL = "START TRANSACTION"
? SQLEXEC(lnHandle, lcSQL)
lcSQL = "BEGIN"
? SQLEXEC(lnHandle, lcSQL)
lcSQL = "INSERT INTO n1 (n1) VALUES (1)"
? SQLEXEC(lnHandle, lcSQL)
lcSQL = "INSERT INTO n1 (n1) VALUES (2)"
? SQLEXEC(lnHandle, lcSQL)
lcSQL = "ROLLBACK"
? SQLEXEC(lnHandle, lcSQL)
Yet, when I query the table after this runs, there are still two records
despite the fact that I asked it to rollback the transaction and that all
commands reported as executing OK.
I am sure I am missing something stupid but I cannot find a decent doc on this
(if you know of one, a reference would be appreciated).
Thanks in advance for your help.
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