/sql-and-sql-queries

SQL queries, Data Types, String Functions and Logical Operators.

MIT LicenseMIT

SQL

SQL is a domain-specific language used in programming and designed for managing data held in a relational database management system, or for stream processing in a relational data stream management system.

Relational databases which all use SQL:

  • MySQL
  • SQLite
  • PostgreSQL
  • Oracle
  • Many Others

Tables

  • Tables hold the data
  • Columns (headers) are header of the table
  • Rows is a data record within a table