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SQL

 I - SQL Overview

  •   Relational database concepts, specific products
  •   SQL syntax rules
  •   Data definition, data manipulation, and data control statements
  •   Getting acquainted with the course database and editor

 II - SQL SELECT statements

  •   Clauses
  •   The SELECT clause: columns and aliases, where expressions, order by expressions how null values behave

 III - SQL Functions and Expressions

  •   Eliminating duplicates with DISTINCT arithmetic expressions
  •   Replacing null values
  •   Numeric operations, including rounding
  •   Date and time functions
  •   Nested table expressions
  •   Case logic
  •   Other expressions in specific dbms products

 IV - SQL Updating

  •   The INSERT, UPDATE and DELETE statements
  •   Column constraints and defaults
  •   Referential integrity constraints

 V - SQL Joins

  •   Inner joins with original and SQL 92 syntax
  •   Table aliases
  •   Left, right and full outer joins, Inner joins
  •   Self-joins

 VI - SQL Sub queries and Unions

  •   Intersection with IN, and, Between
  •   Sub queries
  •   Difference with IS NULL and IS NOT NULL sub queries
  •   The purpose and usage of UNION and UNIONALL

 VII - SQL Summarization

  •    The column functions MIN, MAX, AVG, SUM and COUNT, UPPER, LENGTH, LOWER
  •   The GROUP BY and HAVING clauses Grouping in a combination with joining


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