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Select Data From a MySQL Database. The SELECT statement is used to select data from one or more tables: SELECT column_name (s) FROM table_name. or we can use the * character to select ALL columns from a table: SELECT * FROM table_name. To learn more about SQL, please visit our SQL tutorial.
At the MySQL prompt, SHOW DATABASES does what you want. You can run this command as a query from PDO or the native PHP MySQL library and read the returned rows. Pretend it is a normal select.
mysqli_select_db (mysqli $mysql, string $database): bool. Selects the default database to be used when performing queries against the database connection. Note: This function should only be used to change the default database for the connection.
PHP uses mysqli_select_db function to select the database on which queries are to be performed. This function takes two parameters and returns TRUE on success or FALSE on failure.
The SQL SELECT statement is used to select the records from database tables. Its basic syntax is as follows: SELECT column1_name, column2_name, columnN_name FROM table_name; Let's make a SQL query using the SELECT statement, after that we will execute this SQL query through passing it to the PHP mysqli_query() function to retrieve the table data.
mysql_db_name (resource $result, int $row, mixed $field = NULL): string. Retrieve the database name from a call to mysql_list_dbs ().
You will learn how to query data from MySQL database by using PHP PDO and use PDO prepared statement to securely select data.
