SHOW DATABASES //列出 MySQL Server 数据库。
SHOW TABLES [FROM db_name] //列出数据库数据表。
SHOW CREATE TABLES tbl_name //导出数据表结构。
SHOW TABLE STATUS [FROM db_name] //列出数据表及表状态信息。
SHOW COLUMNS FROM tbl_name [FROM db_name] //列出资料表字段
SHOW FIELDS FROM tbl_name [FROM db_name]，DESCRIBE tbl_name [col_name]。
SHOW FULL COLUMNS FROM tbl_name [FROM db_name]//列出字段及详情
SHOW FULL FIELDS FROM tbl_name [FROM db_name] //列出字段完整属性
SHOW INDEX FROM tbl_name [FROM db_name] //列出表索引。
SHOW STATUS //列出 DB Server 状态。
SHOW VARIABLES //列出 MySQL 系统环境变量。
SHOW PROCESSLIST //列出执行命令。
SHOW GRANTS FOR user //列出某用户权限
DESC TABLE //获取表详细信息
1.
mysql_connect("localhost","root","");
mysql_select_db("test");
$query= "desc student";
$result= mysql_query($query);
while($row=mysql_fetch_assoc($result)){
print_r($row);
}
?>
2.
mysql_connect("localhost","root","");
mysql_select_db("test");
$query= "SHOW FULL COLUMNS FROM student";
$result= mysql_query($query);
while($row=mysql_fetch_assoc($result)){
print_r($row);
}
?>
3.
mysql_connect("localhost","root","");
mysql_select_db("test");
$query= "SELECT * FROM student LIMIT 1";
$result= mysql_query($query);
$fields= mysql_num_fields($result);
for($count=0;$count<$fields;$count++)
{
$field= mysql_fetch_field($result,$count);
print_r($field);
}
?>
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