ORA-06566: invalid number of rows specified

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ORA-06566: invalidnumber of rows specified
Cause: An invalid number of rows was specified in a call tothe procedure
DEFINE_COLUMN in the package DBMS_SQL. For a given parsed statement in a
given cursor, all columns must be defined to have the same number of rows, soall
the calls to DEFINE_COLUMN must specify the same number of rows.
Action: Specifya number that matches that for previously defined columns.