sentences

Mere som dette

chap 6

af jan ozer

ENTORNO PERSONAL DE APRENDIZAJE Paola Tovar Flores

af PAOLA ISABEL TOVAR FLORES

Andrew Guerra Strengths

af Andrew Guerra

elements and compounds

af ROMINA PIÑEIRO

sentences

Insert

Add rows of data to a table.

The general format is: INSERT INTO table_name (column_name, …) VALUES (column_value, …); or INSERT INTO table_name VALUES (column_value, …);

Create Table

The SQL CREATE TABLE command is used to create a database table and defines its data columns.

It has the following format: CREATE TABLE tablename (column_name datatype [constraint_name constraint type], …..)

Delete

Delete rows of data from a table.

The general format is: DELETE FROM tablename WHERE condition(s); e.g. DELETE FROM company WHERE company_ID = 10;

Update

To change a column value in a row or rows the UPDATE command can be used.

This has the following format UPDATE tablename SET condition WHERE condition e.g. UPDATE company SET company_name = ‘BMB’ WHERE company_ID = 10;