Creating a Table
For storing data into an SQL-based DBMS, we first create and select a database instance. We can do so by using the following query:
CREATE DATABASE db_name;
Where db_name
refers to the name of the database which we want to create.
Note
There can be more than one database instance in a DBMS, each containing their own set of tables.
Once the database is created, we can create a table using the following syntax:
CREATE TABLE table_name (
column_name1 data_type,
column_name2 data_type,
...
);
The table_name
indicates the name of the table which is to be created. Inside the brackets (...)
, we write the column names that are to be included in the table, followed by their respective data types. Each column-datatype pair is separated by commas (,
).
Following is a simple CREATE TABLE
query, which creates a table called students
with three columns, namely: first_name
, last_name
, age
:
CREATE TABLE students (
first_name VARCHAR(24),
last_name VARCHAR(24),
age INT
);
Following are the common datatypes in SQL:
Demonstration:
Good Practice:
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Creating a Table
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For storing data into an SQL-based DBMS, we first create and select a database instance. We can do so by using the following query:
CREATE DATABASE db_name;
Where db_name
refers to the name of the database which we want to create.
Note
There can be more than one database instance in a DBMS, each containing their own set of tables.
Once the database is created, we can create a table using the following syntax:
CREATE TABLE table_name (
column_name1 data_type,
column_name2 data_type,
...
);
The table_name
indicates the name of the table which is to be created. Inside the brackets (...)
, we write the column names that are to be included in the table, followed by their respective data types. Each column-datatype pair is separated by commas (,
).
Following is a simple CREATE TABLE
query, which creates a table called students
with three columns, namely: first_name
, last_name
, age
:
CREATE TABLE students (
first_name VARCHAR(24),
last_name VARCHAR(24),
age INT
);
Following are the common datatypes in SQL:
Demonstration:
Good Practice:
Thanks for your feedback!