how to query a blob column in a procedure that is grouped

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Hello ,
i have a stored procedure in pl/sql that is used in crystal report.
What i have to do is to add a column in the already existing grouped select statement, that contains image and it's BLOB.

Is there any idea how to do the grouping ?DO i have to do any conersion first ?
i cannot avoid it,since i get the error on my report ORA-00079 the expression is not grouped by .

I'm not experienced with blob data types .

thanks!

Posted 17-Nov-15 23:45pm

MariaX

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jgakenhe · Answer 1 · 2015-11-26T05:16:00

Solution 1

To use grouping with a blob, you'll need to convert it to a char.

SQL

GROUP BY id, first_name, last_name, TO_CHAR(my_blob);

Posted 26-Nov-15 5:16am

jgakenhe