Wednesday, July 13, 2011

PL/pgSQL

PL/pgSQL Block Structure
  • DECLARE (Optional) 
    • Variables, 
    • cursors,
  • BEGIN (Mandatory) 
    • SQL statements 
    • PLPGSQL statements
  • EXCEPTION (Optional) 
    • Actions to perform when errors occur
  • END; (Mandatory)
  • All key words and identifiers can be written in mixed upper and lower case. Identifiers are implicitly converted to lowercase unless doublequoted.
  • There are two types of comments in PL/pgSQL.
    • -- starts a comment that extends to the end of the line.
    • /* multi-line comments */

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