What is the statement to query data in mysql

The statement to query data in MySQL is the SELECT statement, which is used to retrieve specified row and column data from the table. The syntax is: SELECT column_list FROM table_name [WHERE condition] [GROUP BY group_by_column] [HAVING condition] [ORDER BY order_by_column]. The SELECT * query retrieves all columns in the table, while the SELECT column_list retrieves specified columns. You can use the WHERE clause to filter the results, and use the GROUP B

MySQL statement to query data

MySQL to query data. The statement is a SELECT statement. It is used to retrieve specified row and column data from a database table.

Syntax

<code>SELECT column_list
FROM table_name
[WHERE condition]
[GROUP BY group_by_column]
[HAVING condition]
[ORDER BY order_by_column]</code>

Elements

• column_list: The name of the column to retrieve or expression.
• table_name: The name of the table to be queried.
• WHERE condition: Conditions used to filter query results.
• GROUP BY group_by_column: Used to group the result set by the specified column.
• HAVING condition: Used to further filter the grouped result set.
• ORDER BY order_by_column: Used to sort the result set by the specified column.

Example

<code class="sql">SELECT name, email
FROM users;</code>

This query retrieves name and email## from the users table # all rows of column.

<code class="sql">SELECT name, email
FROM users
WHERE age > 18;</code>

users table for which age is greater than 18.

Other Notes

• SELECT * The query retrieves all columns in the table.
You can use aliases to rename columns, for example
• SELECT name AS username.
You can use aggregate functions (such as
• SUM(), COUNT(), AVG()) to calculate the results.
You can also use the JOIN statement to join multiple tables.

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