PostGIS in Action (3rd)
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PostGIS in Action: (ed. #1) Appendix C - SQL primer

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This is one of the free download chapters of the book, you can get your free copy from Appendix C SQL Primer free download

  • Information Schema
  • Basic SQL functions available in most relational databases
  • JOINS (INNER, OUTER, LEFT, RIGHT, FULL, INTERSECT, EXCEPT)
  • Doing SELECTS, INSERTS, UPDATES, and DELETES
  • Using Aggregates
  • Using subselects
  • Window functions and Window aggregates
    • This chapter highlights the more or less ANSI/ISO SQL Compliant features of PostgreSQL. It introduces the basic concepts of SQL. For those familiar with SQL already, it showcases some of the high-level ANSI SQL features that PostgreSQL supports that you would expect of an enterprise relational database.

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