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SQLite C Interface

Move a BLOB Handle to a New Row

int sqlite3_blob_reopen(sqlite3_blob *, sqlite3_int64);

This function is used to move an existing BLOB handle so that it points to a different row of the same database table. The new row is identified by the rowid value passed as the second argument. Only the row can be changed. The database, table and column on which the blob handle is open remain the same. Moving an existing BLOB handle to a new row is faster than closing the existing handle and opening a new one.

The new row must meet the same criteria as for sqlite3_blob_open() - it must exist and there must be either a blob or text value stored in the nominated column. If the new row is not present in the table, or if it does not contain a blob or text value, or if another error occurs, an SQLite error code is returned and the blob handle is considered aborted. All subsequent calls to sqlite3_blob_read(), sqlite3_blob_write() or sqlite3_blob_reopen() on an aborted blob handle immediately return SQLITE_ABORT. Calling sqlite3_blob_bytes() on an aborted blob handle always returns zero.

This function sets the database handle error code and message.

See also lists of Objects, Constants, and Functions.

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