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mysql> SELECT * FROM name_list;
+----------+------+
| name | no |
+----------+------+
| Sato | 1001 |
| Takahasi | 1002 |
| Yamada | 1003 |
+----------+------+
3 rows in set (0.05 sec)
mysql>
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2007.02.27 | Comments(1) | Trackback(0) | MySQL
¥ì¥³¡¼¥É¤òÁÞÆþ¤¹¤ë¡£¡ÚINSERT INTO¡Û
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mysql> INSERT INTO name_list VALUES('Sato', 1001);
Query OK, 1 row affected (0.03 sec)
mysql> INSERT INTO name_list VALUES('Takahasi', 1002);
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO name_list VALUES('Yamada', 1003);
Query OK, 1 row affected (0.00 sec)
mysql>
2007.02.27 | Comments(1) | Trackback(0) | MySQL
MySQL¤Î¥Ç¡¼¥¿·¿
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mysql> CREATE TABLE name_list (name CHAR(50), no INT);
Query OK, 0 rows affected (0.12 sec)
mysql> SHOW TABLES;
+-------------------+
| Tables_in_sample1 |
+-------------------+
| name_list |
+-------------------+
1 row in set (0.00 sec)
mysql>
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| ·¿Ì¾ | ÀâÌÀ | ¥µ¥¤¥º |
|---|---|---|
| INT(INTEGER) | À°¿ôÃÍ | 4¥Ð¥¤¥È |
| FLOAT | ÉâÆ°¾®¿ôÅÀ | 4¥Ð¥¤¥È |
| DOUBLE | ÉâÆ°¾®¿ôÅÀ | 8¥Ð¥¤¥È |
| CHAR | ¸ÇÄêĹʸ»úÎó | 0¡Á255¥Ð¥¤¥È |
| VARCHAR | ²ÄÊÑĹʸ»úÎó | 0¡Á255¥Ð¥¤¥È |
| TEXT | ²ÄÊÑĹʸ»úÎó | ºÇÂç65,535ʸ»ú |
| DATE | ÆüÉÕ | xxxx-xx-xx |
| TIME | »þ´Ö | xxx:xx:xx |
2007.02.21 | Comments(1) | Trackback(0) | MySQL
MySQL¤Ç¥Æ¡¼¥Ö¥ë¤òÇË´þ¤¹¤ë¡£¡ÚDROP TABLE¡Û
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¡¡¡¡DROP TABLES;
¤Ç¤¹¡£
mysql> SHOW TABLES;
+-------------------+
| Tables_in_sample1 |
+-------------------+
| name_list |
+-------------------+
2 rows in set (0.03 sec)
mysql> DROP TABLE name_list;
Query OK, 0 rows affected (0.08 sec)
mysql> SHOW TABLES;
Empty set (0.01 sec)
mysql>
¡ÖSHOW TABLES¡×¤Ç³Îǧ¤·¤ÆåºÎ蘆¤Ã¤Ñ¤ê¤Ê¤¯¤Ê¤Ã¤Æ¤¤¤ë¤³¤È¤¬¤ï¤«¤ê¤Þ¤¹¤Í¡£
2007.02.20 | Comments(1) | Trackback(0) | MySQL
ʸ»ú¤òÈæ³Ó¤¹¤ë¡£¡Ústrcmp¡Û
PHP¤Çʸ»ú¤òÈæ³Ó¤¹¤ë¤Î¤Ï´Ø¿ô¤Îstrcmp¤ò»È¤¤¤Þ¤¹¡£
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$str1 = "AAAAA";
$str2 = "aaaaa";
echo "ʸ»ú£±¡§ ".$str1;
echo "<br />\n";
echo "ʸ»ú£²¡§ ".$str2;
echo "<br />\n";
echo "<br />\n";
if($margin = strcmp($str1, $str2)) {
echo "°ã¤¤¤Þ¤¹¡£";
}else {
echo "Ʊ¤¸¤Ç¤¹¡£";
}
echo "<br />\n";
echo "º¹¡§ ".$margin;
echo "<br />\n";
echo "<hr />\n";
$str1 = "aaaaa";
$str2 = "a";
echo "ʸ»ú£±¡§ ".$str1;
echo "<br />\n";
echo "ʸ»ú£²¡§ ".$str2;
echo "<br />\n";
echo "<br />\n";
if($margin = strcmp($str1, $str2)) {
echo "°ã¤¤¤Þ¤¹¡£";
}else {
echo "Ʊ¤¸¤Ç¤¹¡£";
}
echo "<br />\n";
echo "º¹¡§ ".$margin;
echo "<br />\n";
echo "<hr />\n";
$str1 = "5";
$str2 = "1";
echo "ʸ»ú£±¡§ ".$str1;
echo "<br />\n";
echo "ʸ»ú£²¡§ ".$str2;
echo "<br />\n";
echo "<br />\n";
if($margin = strcmp($str1, $str2)) {
echo "°ã¤¤¤Þ¤¹¡£";
}else {
echo "Ʊ¤¸¤Ç¤¹¡£";
}
echo "<br />\n";
echo "º¹¡§ ".$margin;
echo "<br />\n";
echo "<hr />\n";
$str1 = "¤¢";
$str2 = "¤¤";
echo "ʸ»ú£±¡§ ".$str1;
echo "<br />\n";
echo "ʸ»ú£²¡§ ".$str2;
echo "<br />\n";
echo "<br />\n";
if($margin = strcmp($str1, $str2)) {
echo "°ã¤¤¤Þ¤¹¡£";
}else {
echo "Ʊ¤¸¤Ç¤¹¡£";
}
echo "<br />\n";
echo "º¹¡§ ".$margin;
echo "<br />\n";
·ë²Ì¡§
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ʸ»ú£²¡§ aaaaa
°ã¤¤¤Þ¤¹¡£
º¹¡§ -1
-----------------------------------------------------------------
ʸ»ú£±¡§ aaaaa
ʸ»ú£²¡§ a
°ã¤¤¤Þ¤¹¡£
º¹¡§ 4
-----------------------------------------------------------------
ʸ»ú£±¡§ 5
ʸ»ú£²¡§ 1
°ã¤¤¤Þ¤¹¡£
º¹¡§ 1
-----------------------------------------------------------------
ʸ»ú£±¡§ ¤¢
ʸ»ú£²¡§ ¤¤
°ã¤¤¤Þ¤¹¡£
º¹¡§ -1
2007.02.17 | Comments(1) | Trackback(0) | PHP
MySQL¤Ç¥Æ¡¼¥Ö¥ë¤òºî¤ë¡£¡ÚCREATE TABLE¡Û
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| name¡Ú̾Á°¡Û(char(50)) | no¡ÚÈÖ¹æ¡Û(int) |
|---|
¤Î¤è¤¦¤Ê¥¤¥á¡¼¥¸¤Ç¤¹¡£
mysql> CREATE TABLE name_list (name CHAR(50), no INT);
Query OK, 0 rows affected (0.07 sec)
¤³¤ì¤Ç¥Æ¡¼¥Ö¥ë¤¬½ÐÍè¤Þ¤·¤¿¡£
³Îǧ¤·¤Æ¤ß¤Þ¤¹¡£
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¡¡¡¡SHOW TABLES;
¤Ç¤¹¡£
mysql> SHOW TABLES;
+-------------------+
| Tables_in_sample1 |
+-------------------+
| name_list |
+-------------------+
1 row in set (0.01 sec)
mysql>
¤Á¤ã¤ó¤È¡Öname_list¡×¤¬½ÐÍè¤Æ¤¤¤Þ¤¹¡£
2007.02.14 | Comments(1) | Trackback(0) | MySQL
MySQL¤Ç»È¤¦¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ø°Üư¡ÚUSE¡Û
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mysql> USE sample1
Database changed
mysql>
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2007.02.14 | Comments(1) | Trackback(0) | MySQL
MySQL¤Ç¥Ç¡¼¥¿¥Ù¡¼¥¹¤òºî¤ë¡£¡ÚCREATE DATABASE¡Û
MySQL¤Ï¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ç¤¹¤Î¤Ç¤Þ¤ººÇ½é¤Ë¥Ç¡¼¥¿¥Ù¡¼¥¹¤òºî¤ë¤³¤È¤«¤é»Ï¤á¤Þ¤¹¡£
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sample1¤È¤¤¤¦¥Ç¡¼¥¿¥Ù¡¼¥¹¤òºî¤Ã¤Æ¤ß¤Þ¤¹¡£
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¡¡¡¡CREATE DATABASE ºî¤ê¤¿¤¤¥Ç¡¼¥¿¥Ù¡¼¥¹;
¤Ç¤¹¡£
mysql> CREATE DATABASE sample1;
Query OK, 1 row affected (0.04 sec)
mysql>
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³Îǧ¤·¤Æ¤ß¤Þ¤¹¡£
³Îǧ¤Ï
¡¡¡¡SHOW DATABASES;
¤Ç¤¹¡£
mysql> SHOW DATABASES;
+--------------------+
| Database |
+--------------------+
| information_schema |
| cdcol |
| mysql |
| phpmyadmin |
| sample1 |
+--------------------+
12 rows in set (0.00 sec)
mysql>
¤Á¤ã¤ó¤È¡Ösample1¡×¤¬½ÐÍè¤Æ¤¤¤Þ¤¹¡£
2007.02.14 | Comments(1) | Trackback(0) | MySQL
CSS¤Ç¥Ü¥Ã¥¯¥¹¤òºî¤ë¡Á£±¡£
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background-color: #aaaaff;
width: 400px;
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2007.02.11 | Comments(2) | Trackback(0) | CSS
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$data = "ÎëÌÚ,»³ÅÄ,µÈÅÄ,º´Æ£";
$arr = explode(",", $data);
for($i = 0; $i < count($arr); $i++) {
echo $arr[$i]."<br />\n";
}
?>
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$arr = explode(",", $line);
foreach($arr as $val) {
echo "|".$val."|<br />\n";
}
echo "<br />\n";
foreach($arr as $val) {
echo "|".trim($val)."|<br />\n";
}
?>
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| 789|
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$data = 'ÎëÌÚ,"»³ÅÄ","µÈÅÄ",º´Æ£';
$arr = explode(",", $data);
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echo "|".trim($val, '"')."|<br />\n";
}
?>
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2007.02.07 | Comments(3) | Trackback(0) | PHP
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