Day: September 25, 2020

SQL tutorials for Business Analyst – SQL | TRUNCATE TABLE

Hits: 39 (SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | TRUNCATE TABLE.   The SQL TRUNCATE TABLE command is used to delete complete data from an existing table. You can also use DROP TABLE command to delete complete table but it would remove …

SQL tutorials for Business Analyst – SQL | ALTER TABLE

Hits: 19 (SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | ALTER TABLE.   The SQL ALTER TABLE command is used to add, delete or modify columns in an existing table. You should also use the ALTER TABLE command to add and drop various …

SQL tutorials for Business Analyst – SQL | Indexes

Hits: 30 (SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | Indexes.   Indexes are special lookup tables that the database search engine can use to speed up data retrieval. Simply put, an index is a pointer to data in a table. An index …

SQL tutorials for Business Analyst – SQL | Alias Syntax

Hits: 24 (SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | Alias Syntax.   You can rename a table or a column temporarily by giving another name known as Alias. The use of table aliases is to rename a table in a specific …