Android SQLite: nullColumnHack parameter in insert/replace methods

Posted by poke on Stack Overflow See other posts from Stack Overflow or by poke
Published on 2010-04-18T16:17:27Z Indexed on 2010/04/18 16:23 UTC
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android

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sqlite

The Android SDK has some convenience methods for manipulating data with SQLite. However both the insert and replace methods use some nullColumnHack parameter which usage I don't understand.

The documentation explains it with the following, but what if a table has multiple columns that allow NULL? I really don't get it :/

SQL doesn't allow inserting a completely empty row, so if initialValues is empty this column [/row for replace] will explicitly be assigned a NULL value

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