15、sql语句集，Linux 下PHP查询mysql
一、mysql 創(chuàng)建數(shù)據(jù)庫
mysql密碼，默認(rèn)沒有
如果想更改的話， mysqladmin? -uroot?? password? root123
登錄?? ： [root@localhost root]#?? mysql??? -uroot??? -proot123
1、創(chuàng)建book數(shù)據(jù)庫
mysql>?? create?? database?? book;
Query OK, 1 row affected (0.08 sec)
?
2、授權(quán)給 lili 用戶
mysql>? grant?? all?? on?? book.*?? to?? lili@localhost?? identified?? by?? "lili123";
Query OK, 0 rows affected (0.06 sec)
mysql> exit
Bye
?
3、lili登錄
創(chuàng)建lili用戶
[root@localhost html]#?? mysql?? -u?? lili??? -p
Enter password:?????? （這里輸密碼）
Welcome to the MySQL monitor.? Commands end with ; or \g.
Your MySQL connection id is 5 to server version: 3.23.54
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql>
?
4、創(chuàng)建book表，添加數(shù)據(jù)
mysql> use? book;??? （先確定要操作的數(shù)據(jù)庫）
Database changed
?
5、創(chuàng)建book表
mysql> create?? table?? book(
??? -> id?? int?? not?? null,
??? -> name?? char(20)?? not?? null,
??? -> primary?? key(id)
??? -> );
Query OK, 0 rows affected (0.08 sec)
?
6、添加數(shù)據(jù)
mysql>? insert?? into?? book?? values
??? -> (1,"語文"),
??? -> (2,"數(shù)學(xué)"),
??? -> (3,"英語");
Query OK, 3 rows affected (0.00 sec)
Records: 3? Duplicates: 0? Warnings: 0
?
（注意：上面操作也可以用sql語句集來執(zhí)行： ? (好處是，去別的機(jī)子也可以執(zhí)行sql語句集 就行，不用從頭打過)
[root@localhost html]#? cat? >? lili.sql
use?? book;
create?? table?? book(
??? id?? int?? not?? null,
??? name?? char(20)?? not? null,
??? primary?? key(id)
??? );
insert?? into? book? values
???? (1,"語文",),
???? (2,"數(shù)學(xué)"),
???? (3,"英語");
[root@localhost html]# vi? root.sql
create?? database?? book;
grant?? all?? on?? book.*?? to?? lili@localhost?? identified?? by?? "lili123" ;
[root@localhost html]# mysql?? -u?? root?? -p?? <?? root.sql
Enter password:
[root@localhost html]# mysql?? -u?? lili?? -p?? <?? lili.sql
Enter password:
?
）
?
7、查詢表
mysql> select?? *?? from?? book;
+----+--------+
| id | name?? |
+----+--------+
|? 1 | 語文 |
|? 2 | 數(shù)學(xué) |
|? 3 | 英語 |
+----+--------+
?
退出mysql
mysql> exit;
Bye
?
如果想直接命令行查詢
[root@localhost root]# echo ? "select ?* ?from ?book;" | ?mysql ?-u ?lili ?-p ?book
Enter password:
id ? ? ? name
1 ? ? ? 語文
2 ? ? ? 數(shù)學(xué)
3 ? ? ? 英語
?
二、在 /var/www/html? 中 創(chuàng)建index.php
[root@localhost html]#? vi??? index.php
<h1> <?phpmysql_connect(NULL,"lili","lili123","localhost");mysql_selectdb("book");$sql="select * from book";$res=mysql_query($sql);while($row=mysql_fetch_row($res)){print "$row[0] $row[1]<br/>";}$a=array("陽光","沙灘","海浪","仙人掌");for($i=0;$i<4;$i++){print "$a[$i]<br/>";} ?> </h1>?
在瀏覽器輸入? http://192.168.170.3/? ,? 結(jié)果如下：
?
如果想要網(wǎng)格線
<html> <title> </title> <body> <h1> <?phpmysql_connect(NULL,"lili","lili123","localhost");mysql_selectdb("book");$sql="select * from book";$res=mysql_query($sql);print ('<table border=1>');while($row=mysql_fetch_row($res)){print ('<tr>');for($i=0;$i<3;$i++){print "<td>$row[$i]</td>";}print ('</tr>');}print ('</table>');$a=array("陽光","沙灘","海浪","仙人掌");for($i=0;$i<4;$i++){print "$a[$i]<br/>";}?> </h1> </body> </html>效果如下：
?
?
轉(zhuǎn)載于:https://www.cnblogs.com/weiapro/p/4765149.html
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