Hi Igor,
All prepared statements become invalid when the database schema
changes. You need to finalize your statement and prepare it again.
Alternatively, if you are using new enough version of SQLite, use
sqlite3_prepare_v2 to prepare your statements: it stores the original
query string and automatically re-prepares the statement when schema
changes.
You are absolutely right, thanks for the hint! This solved indeed the
problem.
Have a nice day,
Frank.
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