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DATATYPES
1-WHAT IS THE MAX LENGHT OF VARCHAR2 DATATYPE IN PL/SQL?2-WHAT IS THE USE OF UROWID?3-WHAT ARE THE SUBTYPES?GIVE ANY 2 EXAMPLE?4- WHAT IS THE GENERAL STANDARD FOR DECLARATION?
1-WHAT IS THE MAX LENGHT OF VARCHAR2 DATATYPE IN PL/SQL?2-WHAT IS THE USE OF UROWID?3-WHAT ARE THE SUBTYPES?GIVE ANY 2 EXAMPLE?4- WHAT IS THE GENERAL STANDARD FOR DECLARATION?
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