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How can I ensure a CLOB column is unique

Duncan GardnerNov 18 2015 — edited Nov 19 2015

I have a table with a CLOB column that I want to ensure is unique. If the column was VARCHAR2 I could use a unique index.

Plan B is a TRIGGER (BEFORE INSERT OR UPDATE ON <table> FOR EACH ROW) with WHERE dbms_lob.compare(en.text, :NEW.text) = 0; But that mutates

Oracle 12c Standard Edition
This post has been answered by BluShadow on Nov 18 2015
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