Oracle Message PLS-00438 - value in LIMIT clause: string use is invalid

ERRORvalue in LIMIT clause: string use is invalid
CAUSEThe evaluation value in the LIMIT clause of a bulk fetch was found in an inappropriate context. For example, the following statement is illegal because the LIMIT clause in a bulk fetch expects a numeric value. FETCH c1 BULK COLLECT INTO var_tab LIMIT 22333; -- illegal
ACTIONChange the expression of the LIMIT clause so that the evaluation result is compatible to a numeric value.