medium
1 min read
SELECT
SELECT The SELECT keyword is a command used in Structured Query Language (SQL) to retrieve specific data from one or more tables. It is similar to the '...
Quick Actions
Insights
Difficultymedium
Reading Time1 min
SELECT The SELECT keyword is a command used in Structured Query Language (SQL) to retrieve specific data from one or more tables. It is similar to the '...
SELECT
The SELECT keyword is a command used in Structured Query Language (SQL) to retrieve specific data from one or more tables. It is similar to the 'fetch' method in other programming languages.
Syntax:
sql
SELECT column1, column2, ...
FROM table_name
WHERE condition;
SELECT specifies the columns you want to retrieve. The syntax can include multiple columns separated by commas.
FROM specifies the table(s) from which you want to retrieve data. You can use multiple tables separated by commas.
WHERE specifies the conditions that filter the data based on specific criteria.
Example:
sql
SELECT name, age, city FROM customers WHERE country = 'United States';
This query selects the 'name', 'age', and 'city' columns from the 'customers' table where the 'country' column is equal to 'United States'.
Additional Notes:
The results of the SELECT statement are stored in a temporary table called a result set.
You can use the SELECT keyword with various operators, such as WHERE, ORDER BY, and GROUP BY.
The data retrieved by SELECT can be used for various purposes, such as reporting, analysis, and decision-making