Question

explain PL/sql block structure in detail..​

Answer 1

Answer:

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A blo.ck is a unit of cod.e that provides execution and scoping boundaries for variable declarations and exception handling. PL/SQL allows you to create anonymous bloc.ks (bl.ocks of co.de that have no name) and named bloc.ks, which may be packages, procedures, functions, triggers, or object types.

Explanation:

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Answer 2

Answer:

photosynthesis is a process by which green plants make their food with the help of carbon dioxide water minerals and sunlight and change them into chemical energy

Explanation:

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