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MySql server Win7 32, ODBC connector causing large tables to crash ODBC connector
Say, MySQL server, version: 5.5.29 is running on Win7 32 Bit OS.
Connecting from MSAccess using current 32 bit ODBC driver mysql-connector-odbc-5.2.2
On small tables works fine, but on large ones,the ODBC driver crashes. It is on an append query.
Pls help!
Connecting from MSAccess using current 32 bit ODBC driver mysql-connector-odbc-5.2.2
On small tables works fine, but on large ones,the ODBC driver crashes. It is on an append query.
Pls help!
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does the table have a primary key field?
especially for append operations this should work fine, at least I could work just fine even on large tables (10 million rows) ...
now, what do you call "large" tables?
what type of tables? MyISAM, InnoDB, something else?
especially for append operations this should work fine, at least I could work just fine even on large tables (10 million rows) ...
now, what do you call "large" tables?
what type of tables? MyISAM, InnoDB, something else?
The Source table doesn't have a primary key but the destination table does. Its the autonum.
If we append a table of say 3000 records it works fine. A table of say 70,000 records causes the ODBC to crash.
They are linked ODBC tables using the above odbc driver and created in MS Access 2000
As for MyISAM, InnoDB
Please explain the difference. I just created the tables in MSACCESS, exported the to MySQL and linked them back, as it was easier to use the graphical interface in MSAccess
If we append a table of say 3000 records it works fine. A table of say 70,000 records causes the ODBC to crash.
They are linked ODBC tables using the above odbc driver and created in MS Access 2000
As for MyISAM, InnoDB
Please explain the difference. I just created the tables in MSACCESS, exported the to MySQL and linked them back, as it was easier to use the graphical interface in MSAccess
Hi!
If you are querying very large tables or inserting/updating large records you will have to either
limit your result set to some smaller result using some good column values or the limit keyword
http://dev.mysql.com/doc/refman/5.5/en/select.html
http://dev.mysql.com/doc/refman/5.5/en/limit-optimization.html
or change the size of the client/server packet size (max_allowed_packet) to a suitable size.
http://dev.mysql.com/doc/refman/5.5/en/packet-too-large.html
http://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html#sysvar_max_allowed_packet
In your case I would go for the max_allowed_packet. :)
Regards,
Tomas Helgi
If you are querying very large tables or inserting/updating large records you will have to either
limit your result set to some smaller result using some good column values or the limit keyword
http://dev.mysql.com/doc/refman/5.5/en/select.html
http://dev.mysql.com/doc/refman/5.5/en/limit-optimization.html
or change the size of the client/server packet size (max_allowed_packet) to a suitable size.
http://dev.mysql.com/doc/refman/5.5/en/packet-too-large.html
http://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html#sysvar_max_allowed_packet
In your case I would go for the max_allowed_packet. :)
Regards,
Tomas Helgi
>As for MyISAM, InnoDB
>Please explain the difference.
it's the table storage engines:
http://dev.mysql.com/doc/refman/5.1/en/storage-engines.html
it may impact the performance ...
>Please explain the difference.
it's the table storage engines:
http://dev.mysql.com/doc/refman/5.1/en/storage-engines.html
it may impact the performance ...
Try increasing it to 32M or 64M.
Also you have to set max_allowed_packet into the my.cnf file and restart the database.
Can you post the error you are getting?
Regards,
Tomas Helgi
Also you have to set max_allowed_packet into the my.cnf file and restart the database.
Can you post the error you are getting?
Regards,
Tomas Helgi
and 32M
max_allowed_packet = 32M
The size of the table being appended is a 2Meg Text file imported to a table and the table to which it is appended is about 800Meg
max_allowed_packet = 32M
The size of the table being appended is a 2Meg Text file imported to a table and the table to which it is appended is about 800Meg
Unfortunately access just returns a general error with inserting table - no specific error no.
A clue to solution. When I was using the older version 3 ODBC driver and had the database stored in a Linux MySql server this problem did not exist.
Is there a way I can run the query from within MySql & call it from MSaccess? I will have to pass a single parameter to the query. I need a simple insert query.
A clue to solution. When I was using the older version 3 ODBC driver and had the database stored in a Linux MySql server this problem did not exist.
Is there a way I can run the query from within MySql & call it from MSaccess? I will have to pass a single parameter to the query. I need a simple insert query.
you might want to check out toad for MySQL ...
I use that often, and it's quite nice to run sql directly on MySQL.
note the same GUI as ms accesss, but still very useful and powerful
http://www.toadworld.com/Downloads/ToadforMySQLFreeware/tabid/561/Default.aspx
I use that often, and it's quite nice to run sql directly on MySQL.
note the same GUI as ms accesss, but still very useful and powerful
http://www.toadworld.com/Downloads/ToadforMySQLFreeware/tabid/561/Default.aspx
to automate SQL queries, you don't need ms access.
you can scheduled SQL scripts with MySQL easily also:
http://dev.mysql.com/doc/refman/5.1/en/events-overview.html
and if it's based on human input (button click), you could code it all inside a stored procedure, and just run that one ...
you can scheduled SQL scripts with MySQL easily also:
http://dev.mysql.com/doc/refman/5.1/en/events-overview.html
and if it's based on human input (button click), you could code it all inside a stored procedure, and just run that one ...
Hi!
If you are inserting into a MySQL table from Access you will need to first create a Linked Table through the MySQL ODBC driver and then you can use the ADO Insert method in the VB.
Same goes for any other database table.
Regards,
Tomas Helgi
If you are inserting into a MySQL table from Access you will need to first create a Linked Table through the MySQL ODBC driver and then you can use the ADO Insert method in the VB.
Same goes for any other database table.
Regards,
Tomas Helgi
you can do sql over ado:
http://dev.mysql.com/doc/connector-odbc/en/connector-odbc-examples-programming-vb-ado.html
http://dev.mysql.com/doc/connector-odbc/en/connector-odbc-examples-programming-vb-ado.html
what kind of stored query?
you can translate them into the mysql corresponding code, which will then run on the mysql server, running better...
you can translate them into the mysql corresponding code, which will then run on the mysql server, running better...
Want to sort out queries failing for large tables....
Btw, tried
max_allowed_packet. of 128M
Same error
Btw, tried
max_allowed_packet. of 128M
Same error
The error can be one of these
http://office.microsoft.com/en-us/access-help/HV080760716.aspx
http://blog.nkadesign.com/2009/access-run-time-error-3155-odbc-insert-on-a-linked-table-failed/
http://stackoverflow.com/questions/11315678/error-3155-odbc-insert-on-a-linked-table-sample-failed
Does your user that open a connect to the linked table have sufficient rights to the database and all the tables involved ?
Regards,
Tomas Helgi
http://office.microsoft.com/en-us/access-help/HV080760716.aspx
http://blog.nkadesign.com/2009/access-run-time-error-3155-odbc-insert-on-a-linked-table-failed/
http://stackoverflow.com/questions/11315678/error-3155-odbc-insert-on-a-linked-table-sample-failed
Does your user that open a connect to the linked table have sufficient rights to the database and all the tables involved ?
Regards,
Tomas Helgi
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