MySQL創(chuàng)建和刪除數(shù)據(jù)表的命令及語法詳解_MySQL

CREATE TABLE table_name (column_name column_type);

tutorials_tbl(
 tutorial_id INT NOT NULL AUTO_INCREMENT,
 tutorial_title VARCHAR(100) NOT NULL,
 tutorial_author VARCHAR(40) NOT NULL,
 submission_date DATE,
 PRIMARY KEY ( tutorial_id )
);

root@host# mysql -u root -p

Enter password:*******

mysql> use TUTORIALS;

Database changed

mysql> CREATE TABLE tutorials_tbl(
 -> tutorial_id INT NOT NULL AUTO_INCREMENT,
 -> tutorial_title VARCHAR(100) NOT NULL,
 -> tutorial_author VARCHAR(40) NOT NULL,
 -> submission_date DATE,
 -> PRIMARY KEY ( tutorial_id )
 -> );

Query OK, 0 rows affected (0.16 sec)

mysql>

<?php
$dbhost = 'localhost:3036';
$dbuser = 'root';
$dbpass = 'rootpassword';
$conn = mysql_connect($dbhost, $dbuser, $dbpass);
if(! $conn )
{
 die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully
';
$sql = "CREATE TABLE tutorials_tbl( ".
 "tutorial_id INT NOT NULL AUTO_INCREMENT, ".
 "tutorial_title VARCHAR(100) NOT NULL, ".
 "tutorial_author VARCHAR(40) NOT NULL, ".
 "submission_date DATE, ".
 "PRIMARY KEY ( tutorial_id )); ";
mysql_select_db( 'TUTORIALS' );
$retval = mysql_query( $sql, $conn );
if(! $retval )
{
 die('Could not create table: ' . mysql_error());
}
echo "Table created successfully\n";
mysql_close($conn);
?>

DROP TABLE table_name ;

root@host# mysql -u root -p
Enter password:*******

mysql> use TUTORIALS;
Database changed
mysql> DROP TABLE tutorials_tbl
Query OK, 0 rows affected (0.8 sec)
mysql>

<?php
$dbhost = 'localhost:3036';
$dbuser = 'root';
$dbpass = 'rootpassword';
$conn = mysql_connect($dbhost, $dbuser, $dbpass);
if(! $conn )
{
 die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully
';
$sql = "DROP TABLE tutorials_tbl";
mysql_select_db( 'TUTORIALS' );
$retval = mysql_query( $sql, $conn );
if(! $retval )
{
 die('Could not delete table: ' . mysql_error());
}
echo "Table deleted successfully\n";
mysql_close($conn);
?>