4.10.3 Structured Query Language (SQL)

4.10.3 Structured Query Language (SQL)

1. Define a database table

   • Alter table structure
     • Change column data type
     • Delete column
     • Add column (fields)

2. SELECT .. FROM .. WHERE

3. Define linked tabled

4. Extract data from multiple tables in a relational database

   • Delete
   • Update
   • Insert
   • Retrieve