A Gentle Introduction to

SQL

SELECT

Construct queries

Concatenate two or more fields.| SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase |
Make union between different tables to build one single view or request?| SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase |
Use 'like' in a sql select statement| SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase |
How to build a statement on a word with an Apostrophe such as WHERE name='Tom's Book'| SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase |
Full text search| SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase |
Display a column name for an aggregate function.| SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase |
How do you use Equi Join to join two tables with the same name.| SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase |
Use SELECT for a column whose name contains spaces.| SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase |
use NüULL| SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase |