Name
sqlite3_blob_read() — Read data from a BLOB
Definition
int sqlite3_blob_read( sqlite3_blob* blob, void* buff, int bytes, int offset );
-
blob
A BLOB handle acquired from
sqlite3_blob_open()
.-
buff
A data buffer. Data is read from the BLOB into the buffer.
-
bytes
The number of bytes to read from the BLOB into the buffer.
-
offset
Offset from beginning of BLOB where read should start.
- Returns
An SQLite return code. Attempting to read from an expired BLOB handle will return
SQLITE_ABORT
.
Description
This function reads the specified number of bytes from a BLOB
value into the given buffer. The read will start from the
provided offset. Any attempt to read past the end of the BLOB
results in an error, meaning that the BLOB must have bytes + offset
or more
bytes.
See Also
Get Using SQLite now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.