Basic Query Operations (Filtering, Sorting, Grouping) Aggregate Functions (SUM, COUNT, MAX, MIN) Window Functions (RANK, DENSE_RANK, LEAD, LAG) Joins (INNER, LEFT ...
IMPORTANT: A PostgreSQL database is required for this training session. Because of the limited time for today's session, we will not cover setting up a PostgreSQL database during the session. So, we ...
Here are only a few functions to demonstrate how easy it is to write PL/pgSQL functions. For more complex examples the programmer might look at the regression test for PL/pgSQL.
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