Difference between revisions of "Table Creation and Management"

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;Identify the table name and structure
;Identify the table name and structure
: Commands used to create or modify database tables are called '''data definition language(DDL'''
: Commands used to create or modify database tables are called '''data definition language(DDL''' commands
: A '''Database Object''' is a defined self contained structure also called database tables
;Create a new table with the CREATE TABLE command
;Create a new table with the CREATE TABLE command
;Use a subquery to create a new table
;Use a subquery to create a new table

Revision as of 22:39, 29 September 2017

Identify the table name and structure
Commands used to create or modify database tables are called data definition language(DDL commands
A Database Object is a defined self contained structure also called database tables
Create a new table with the CREATE TABLE command
Use a subquery to create a new table
Add a column to an existing table
Modify the definition of a column in an existing table
Delete a column from an existing table
Mark a column as unused and then delete it later
Rename a table
Truncate a table
Drop a table