Elance Exams Answers PDF file

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What is the difference between DO 'some code...' and EXECUTE 'some code...' statements?

DO prepares a statement and EXECUTE executes it
No difference - they both need a preparation for execution
No difference - they both can execute a code without preparation
EXECUTE statement executes only prepared code, and DO can execute without PREPARE statement
DO lets you execute some plPgSql code without saving it to database and EXECUTE lets you execute DDL or DML only
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