问题
I know that the ODBC library has a commit/2 and commit/3, but I'm not sure if I am interpreting its use correctly.
If I do the following
- create a session with the {auto_commit, off} attribute
- and then do a series of separate sql_query/2 SELECT statements (not batched statements, but separate invocations of sql_query/2)
- followed by a commit/2
Are the selects all done within a single transaction guaranteeing ACID properties?
回答1:
It seems that unixodbc-oracle driver is buggy, i.e. it doesn't set auto_commit attribute properly during creation of connection. You can apply https://github.com/brb/otp/commit/111f3c091d5f1e9214d2e7cfbd73400b6602a0ed change, which let you to change auto_commit mode after connection is established.
来源：https://stackoverflow.com/questions/11833254/using-odbc-are-separate-sql-query-2-invocations-involving-select-guaranteed-aci