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PostgreSQL and SSMS (CTEs, views, window functions, subqueries, joins, procedures, functions, triggers etc); EXCEL (pivot tables, vlookup, descriptive statistics, dispersion, percentiles, quartiles, hypothesis tests, t-, z-tests).

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SQL (PostgreSQL, SSMS), Excel, SqlDBM - ER modeling)

PostgreSQL:

  • CTE,
  • views,
  • window functions,
  • subqueries,
  • joins / except,
  • create / insert,
  • procedures / functions / triggers.

Excel:

  • pivot tables,
  • vlookup,
  • descriptive statistics,
  • dispersion,
  • percentiles,
  • quartiles,
  • hypothesis tests,
  • t-test,
  • z-test.

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PostgreSQL and SSMS (CTEs, views, window functions, subqueries, joins, procedures, functions, triggers etc); EXCEL (pivot tables, vlookup, descriptive statistics, dispersion, percentiles, quartiles, hypothesis tests, t-, z-tests).

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