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+.Dd January 24, 2024
+.Dt SQLITE3_BLOB_READ 3
+.Os
+.Sh NAME
+.Nm sqlite3_blob_read
+.Nd read data from a BLOB incrementally
+.Sh SYNOPSIS
+.In sqlite3.h
+.Ft int
+.Fo sqlite3_blob_read
+.Fa "sqlite3_blob *"
+.Fa "void *Z"
+.Fa "int N"
+.Fa "int iOffset"
+.Fc
+.Sh DESCRIPTION
+This function is used to read data from an open BLOB handle
+into a caller-supplied buffer.
+N bytes of data are copied into buffer Z from the open BLOB, starting
+at offset iOffset.
+.Pp
+If offset iOffset is less than N bytes from the end of the BLOB, SQLITE_ERROR
+is returned and no data is read.
+If N or iOffset is less than zero, SQLITE_ERROR is returned
+and no data is read.
+The size of the blob (and hence the maximum value of N+iOffset) can
+be determined using the
+.Fn sqlite3_blob_bytes
+interface.
+.Pp
+An attempt to read from an expired BLOB handle fails with
+an error code of SQLITE_ABORT.
+.Pp
+On success, sqlite3_blob_read() returns SQLITE_OK.
+Otherwise, an error code or an extended error code
+is returned.
+.Pp
+This routine only works on a BLOB handle which has been
+created by a prior successful call to
+.Fn sqlite3_blob_open
+and which has not been closed by
+.Fn sqlite3_blob_close .
+Passing any other pointer in to this routine results in undefined and
+probably undesirable behavior.
+.Pp
+.Sh IMPLEMENTATION NOTES
+These declarations were extracted from the
+interface documentation at line 7840.
+.Bd -literal
+SQLITE_API int sqlite3_blob_read(sqlite3_blob *, void *Z, int N, int iOffset);
+.Ed
+.Sh SEE ALSO
+.Xr sqlite3_blob 3 ,
+.Xr sqlite3_blob_bytes 3 ,
+.Xr sqlite3_blob_close 3 ,
+.Xr sqlite3_blob_open 3 ,
+.Xr sqlite3_blob_write 3 ,
+.Xr SQLITE_OK 3