Table:
In SQL, a table is a set of data that is displayed systematically in rows and columns.
To create a new table, use the CREATE TABLE statement.
Syntax:
CREATE TABLE tableName
(columnName1 datatype,
columnName2 datatype,
...
columnNameN datatype);
Example:
CREATE TABLE EMPLOYEE (
EMP_ID INT NOT NULL,
NAME VARCHAR (20) NOT NULL,
AGE INT NOT NULL,
SALARY INT NOT NULL,
PRIMARY KEY (EMP_ID)
);
Output:
Table created.
Note: We can use the DESC command to see the created table.
DESC EMPLOYEE;
Table Column Data Type Length Precision Scale Primary Key Nullable Default Comment
EMPLOYEE EMP_ID Number - - 0 1 - -
NAME Varchar 20 - 0 - - -
AGE Number - - 0 - - -
SALARY Number - - 0 - - -