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Stored Procedures vs Functions
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Stored Procedures vs Functions

EasySQL · PostgreSQL

Problem

Explain the key differences between stored procedures and functions in SQL (return values, DML operation capabilities, how they are executed).

Asked in the Technical interview stage. Present the comparison using PostgreSQL terminology and syntax.

Output

  1. One row per comparison aspect.
  2. Columns: aspect, function_behavior, procedure_behavior, and execution_note.
  3. Order rows by the supplied comparison order.

Schema

routine_examples
ColumnTypeDescription
sort_orderPKINTOrder in which comparison aspects should appear
aspectVARCHAR(100)Concept being compared
function_behaviorVARCHAR(500)Behavior of a PostgreSQL function
procedure_behaviorVARCHAR(500)Behavior of a PostgreSQL procedure
execution_noteVARCHAR(500)Relevant invocation or execution detail
Tablesroutine_examples
Interviewer

Your question is Stored Procedures vs Functions. Start with the requirements and the one table in the Question tab.

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