New related comments
Number of comments in the last 48 hours
MAX() in an InterBase query delivers the smallest value
SQL error message 'Multiple rows in a singleton select'
InterBase: What is the SQL command to create new users?
InterBase error message about BLR
3 comments. Current rating: (1 votes). Leave comments and/ or rate it.
Question:I got an error message from InterBase mentioning something about BLR - what does this mean?
Answer:BLR is short for 'Binary Language Representation'.
InterBase internally does not understand SQL. All statements (queries, updates, meta data manipulation) are internally represented in a binary notation. When you compile stored procedure or trigger code, it is translated into BLR and the BLR representation is kept in a BLOB sub type field. This translation is done only once, which is why stored procedures are good for efficiency. The command-line tool isql shows you the BLR representation of stored procedures (and triggers, constraints, table definiotions after you issue a SET BLOB ALL command and then use a select statement to get the appropriate BLR fields from the system tables which are accessed as RDB$RELATIONS.
See the example below: