Oracle Error PLS-00102: parser stack overflow because nesting is too deep

Oracle Error Message

PLS-00102: parser stack overflow because nesting is too deep

Reason for the Error

The parser, which checks the syntax of PL/SQL statements, uses a data structure called a stack; the number of levels of nesting in the PL/SQL block exceeded the stack capacity.

Solution

Reorganize the block structure to avoid nesting at too deep a level. For example, move the lowest-level sub-block to a higher level.