Database Access Attention Issues

1. Use try{}catch{}catch{}...finally{}

The general finally put is whether the execution of the statement in the try, such as database shutdown, network connection shutdown and so on.

2, after the database is used, the cusor and the library are closed best, or 2.3 The library does not shut down will be a warning. (Seemingly 4.0 above the warning).

3, the database access process is single-threaded, do not use multithreading. If the database requires network synchronization data, the synchronization does not resolve itself, only need to provide a method to the caller to use.

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Database Access Attention Issues