Toolset › BLOB Functions in Action Diagram

BLOB Functions in Action Diagram

The BLOB functions let you add algorithms to the logic in action diagrams and action blocks.

The following points must be considered while using the BLOB functions in an Action Diagram:

• Avoid assigning a NULL value to either of the input BLOBs. The function exits with an invalid LOB handle error message.
• When the length of the input BLOBs are zero, that is, the input BLOBs are empty, the function returns without any action.

CONCATBLOB

The following point must be considered while using the CONCATBLOB function in an Action Diagram:

• If the concatenated length is greater than the length of destination, the output is truncated to available destination length.

SUBSTRBLOB

The following points must be considered while using the SUBSTRBLOB function in an Action Diagram:

• If index is less than zero, the substring of the BLOB is from the zeroth index of the input BLOB.
• If the length of the substring to be retrieved is less than zero, SUBSTRBLOB sets the length to zero.
• If the length attribute given to the function is greater than the length of the BLOB, the output is truncated to hold BLOB until the end of BLOB.

Text Conversion Functions – BLOBDBCS, BLOBMBCS, BLOBTEXT, DBCSBLOB, MBCSBLOB, TEXTBLOB

The following point must be considered while using the text conversion functions (BLOBDBCS, BLOBMBCS, BLOBTEXT, DBCSBLOB, MBCSBLOB, TEXTBLOB) in an Action Diagram:

• If the destination length is less than the length of input BLOB, the output is truncated to length of destination.