How to use WHERE in SELECT in MySQL?

WHERE in SELECT is a logical operator that filters the results of a query. It can be used to select only rows that satisfy a certain condition. The WHERE clause is an optional clause in the SELECT statement. It precedes FROM and it specifies which rows should be selected from the table specified in FROM clause. When WHERE is used, it restricts the rows to those that match its filter conditions.

sql select contem uma palavra

on Jan 01, 1970

SELECT * FROM PESSOA WHERE Nome LIKE 'J%';

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sql select where in

on Jan 01, 1970

SELECT * FROM table_name WHERE country IN ('SPAIN', 'MEXICO');

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sql select where

on Jan 01, 1970

SELECT * FROM table_name;
-- Sorting col1 ASCending then col2 DESCending
SELECT col1, col2 FROM table_name ORDER BY col1 ASC, col2 DESC;
-- Filter on col1
SELECT col1, col2 FROM table_name WHERE col1 = 'a value';
-- Containing 'searched'
SELECT col1, col2 FROM table_name WHERE col1 LIKE '%searched%';
-- All different values
SELECT DISTINCT col1 FROM table_name;
-- Simple sum
SELECT col1, sum(col2) FROM table_name GROUP BY col1;

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sql select

on Jan 01, 1970

SELECT * FROM TABLE_NAME;

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SELECT FROM WHERE

on Jan 01, 1970

Sorting from dev_type names

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MySQL is a powerful and flexible RDBMS for storing and retrieving data. Here, we will introduce the use of WHERE in SELECT statement.

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