{"id":5143,"date":"2025-12-24T22:43:53","date_gmt":"2025-12-24T13:43:53","guid":{"rendered":"https:\/\/matomemopad.com\/?p=5143"},"modified":"2026-01-25T19:52:10","modified_gmt":"2026-01-25T10:52:10","slug":"sql%e5%ad%a6%e7%bf%92%e8%a8%98%e9%8c%b2","status":"publish","type":"post","link":"https:\/\/matomemopad.com\/?p=5143","title":{"rendered":"SQL\u5b66\u7fd2\u8a18\u9332"},"content":{"rendered":"\n

\u57fa\u790e\u77e5\u8b58<\/strong><\/h1>\n\n\n\n

\u30fbRDB\uff08\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\uff08\u9023\u643a\u30fb\u7d50\u5408\uff09\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff09
\u30fbRDBS\uff1aRDS\u3092\u7ba1\u7406\u3059\u308b
\u21d2\u7d50\u5408\u6761\u4ef6\uff1a\u4f55\u3092\u8ef8\u3068\u3057\u3066\u3001\u4f55\u3092\u7d50\u5408\u3055\u305b\u308b\u304b<\/p>\n\n\n\n

\u8907\u6570\u7d44\u307f\u5408\u308f\u305b\u3066DB\u3068\u306a\u308b\u3002\u756a\u53f7\u3092\u6307\u5b9a\u3059\u308b\u3002<\/p>\n\n\n\n

[\u7528\u8a9e]<\/strong><\/p>\n\n\n\n

\u4e3b\u30ad\u30fc<\/strong><\/td>\u5185\u5bb9\u304c\u91cd\u8907\u3059\u308b\u3053\u3068\u306f\u306a\u3044\u3002\u5916\u2190\u4e3b<\/td><\/tr>
\u5916\u90e8\u30ad\u30fc<\/strong><\/td>\u4ed6\u306eDB\uff08\u30c6\u30fc\u30d6\u30eb\uff09\u3068\u9023\u643a<\/td><\/tr>
\u30a8\u30a4\u30ea\u30a2\u30b9<\/strong><\/td>\u5217\u306b\u5bfe\u3057\u3001\u5225\u9014\u540d\u524d\u3092\u4ed8\u3051\u3089\u308c\u308b\uff08DEPT NO\u2192\u90e8\u7f72\u756a\u53f7\uff09<\/td><\/tr>
Unicode<\/strong><\/td>UTF8\u3000\u56fd\u969b\u898f\u5b9a\uff08\uff13\u30d0\u30a4\u30c8\u3067\u8868\u73fe\uff09<\/td><\/tr>
Sjis<\/td>\u65e5\u672c\u7528\uff082\u30d0\u30a4\u30c8\u3067\u8868\u73fe\uff09\u3002Sjis\u3067\u4f5c\u6210\u3057\u305f\u6587\u7ae0\u306fUTF8\u3067\u8868\u793a\u3067\u304d\u306a\u3044<\/td><\/tr>
\u30b5\u30d7\u30ec\u30b9<\/td>\u6291\u5727\u3001\u6291\u5236<\/td><\/tr>
\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3<\/td>\u30c6\u30fc\u30d6\u30eb\u3092\u7d50\u3073\u3064\u3051\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

SQL \u306b\u3064\u3044\u3066<\/h1>\n\n\n\n

\u30fbSQL\uff1a\u554f\u3044\u5408\u308f\u305b\u8a00\u8a9e
\u30a2\u30d7\u30ea\u4e0a\u304b\u3089\u306e\u6307\u793a\u3001Action\u304c\u591a\u3044\u3002\uff08\u4f8b\uff1aGoogle \u691c\u7d22\u6307\u793a\uff09
\uff08\u5b9a\u671f\u7684\uff09\u81ea\u52d5\u66f4\u65b0\u3055\u308c\u308b\u3002<\/p>\n\n\n\n

\uff11\uff1a\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210
\uff12\uff1a\u30b3\u30de\u30f3\u30c9\u3067\u6307\u5b9a
\uff5e
\u7d50\u679c\uff08\u30c6\u30fc\u30d6\u30eb\uff09\u633f\u5165\u3055\u308c\u308b<\/p>\n\n\n\n

[SQL \u30b3\u30f3\u30bd\u30fc\u30eb\u753b\u9762]<\/strong><\/p>\n\n\n\n

-><\/td>\u5165\u529b\u304c\u7d9a\u3044\u3066\u3044\u308b\u72b6\u614b<\/td><\/tr>
;<\/td>\u6700\u5f8c\u3001\u5fc5\u305a\u3064\u3051\u3066\u7de0\u3081\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

[JSON \u69cb\u6587]<\/strong>
\u21d2\u8907\u6570\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u9023\u7d50\u3055\u305b\u308b\u305f\u3081\u306b\u3001From\u3067\u8907\u6570\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u6307\u5b9a
\u21d2\uff08,\uff09\u3067\u30c6\u30fc\u30d6\u30eb\u3092\u533a\u5207\u308b
JOIN\u3067\u3082\u53ef\u80fd\u3060\u304c\u3001JOIN\u3068Using\u3067\u7d50\u5408\u6761\u4ef6\u3092\u6307\u5b9a\u3059\u308b\u3002<\/p>\n\n\n\n

[\u30b3\u30de\u30f3\u30c9]<\/strong><\/p>\n\n\n\n

\\c<\/td>\u30a8\u30e9\u30fc\u3092\u51fa\u3055\u305a\u306b\u30b3\u30de\u30f3\u30c9\u306e\u7d42\u4e86<\/td><\/tr>
*<\/td>\u30c6\u30fc\u30d6\u30eb\u5168\u4f53\u3092\u8868\u793a\u3059\u308b\u3002\uff08\u5217\u540d\u306b\u4f7f\u7528\u3059\u308b\uff09<\/td><\/tr>
!=<\/td>\u30ce\u30c3\u30c8\u30a4\u30b3\u30fc\u30eb<\/td><\/tr>
and , or , not<\/td><\/td><\/tr>
\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9<\/td>\u300c_\u300d\u3001\u300c%\u300d<\/td><\/tr>
use “\u30c6\u30fc\u30d6\u30eb\u540d”<\/td>\u30c6\u30fc\u30d6\u30eb\u3092\u3072\u3089\u304f<\/td><\/tr>
-u \u30e6\u30fc\u30b6\u540d -p<\/td>-p \u5165\u529b\u5f8c\u3001\u30d1\u30b9\u30ef\u30fc\u30c9<\/td><\/tr>
\uff5e order by \u52171 \u52172<\/td>\u52171\u3092\u512a\u5148\u306b\u52171,\u52172\u5171\u306b\u4e26\u3073\u5909\u3048\u3089\u308c\u308b<\/td><\/tr>
%A%:\u691c\u7d22<\/td>A\u304b\u3089\u59cb\u307e\u308b<\/td><\/tr>
between<\/td>\u7bc4\u56f2\u6307\u5b9a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Select \u6587<\/h1>\n\n\n\n

\u203bLIKE\u6f14\u7b97\u5b50\uff1a\u691c\u7d22\u7cfb<\/p>\n\n\n\n

\u5358\u4e00\u95a2\u6570<\/strong><\/summary>\n

\u203bselect\u6587\u306f\uff12\u3064\u306e\u8868\u3092\u5bfe\u8c61\u306b\u3067\u304d\u308b<\/p>\n\n\n\n

select CEIL(-14.8)<\/td>-14<\/td><\/tr>
select floor(-14.8)<\/td>-15<\/td><\/tr>
select mod(8,3)<\/td>2<\/td><\/tr>
select power(4,3)<\/td>4\u306e3\u4e57<\/td><\/tr>
select ROUND ( m , n )<\/td>\u623b\u308a\u5024<\/td><\/tr>
select TRUNCATE<\/td>\u5207\u308a\u6368\u3066\u5024<\/td><\/tr>
select SQRT(16);<\/td>4 \u5e73\u65b9\u6839<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>\n<\/details>\n\n\n\n

\u6587\u5b57\u95a2\u6570<\/strong><\/summary>\n
select LENGTH(‘\u6587\u5b57\u5217’);<\/td>char \u306e\u9577\u3055\uff08\u6587\u5b57\u5217\uff09\u3092\u30d0\u30a4\u30c8\u6570\u306b\u623b\u3059\uff08\u7a7a\u767d\u3092\u542b\u3081\u3066\u4f55\u30d0\u30a4\u30c8\u304b\uff09
\u203bwin = shift JIS\uff1a1\u6587\u5b57\u306b\u5bfe\u3059\u308b\u30c7\u30fc\u30bf\u91cf<\/td><\/tr>
select INSTR(‘char1′,’char2’);<\/td>char1\u306b\u5bfe\u3057\u3066char2\u3092\u8abf\u3079\u308b\u3002
\u970a\uff1aINSTR(‘\u7530\u4e2d \u4e00’,’\u4e2d’)\u2192\uff12<\/td><\/tr>
select SUBSTR(‘\u6587\u5b57\u5217’,n,m);<\/td>n\u756a\u76ee\u304b\u3089m\u6587\u5b57\u306e\u9577\u3055\u3092\u629c\u304d\u51fa\u3059\u3002
\u4f8b\uff1aSUBSTR(‘char’,2,3);\u2192har<\/td><\/tr>
select UPPER<\/td>\u5c0f\u6587\u5b57\u2192\u5927\u6587\u5b57<\/td><\/tr>
select LOWER<\/td>\u5927\u6587\u5b57\u2192\u5c0f\u6587\u5b57<\/td><\/tr>
select CONCAT(‘char1′,’char2’);<\/td>\u6587\u3092\u5408\u4f53\u3002
\u4f8b\uff1aCONCAT(‘TOM’,’CAT’);\u2192TOMCAT<\/td><\/tr>
select RPAD(‘char1′,n,’char2’);<\/td>char1\u306bn\u6841\u306b\u306a\u308b\u3088\u3046\u306bchar2\u3092\u53f3\u306b\u8ffd\u52a0
RPAD(‘12345′,’8′,’$’)\u219212345$$$<\/td><\/tr>
select LPAD(‘char1′,n,’char2’);<\/td>char1\u306bn\u6841\u306b\u306a\u308b\u3088\u3046\u306bchar2\u3092\u5de6\u306b\u8ffd\u52a0
LPAD(‘12345′,’8′,’$’)\u2192$$$12345<\/td><\/tr>
select TRIM(both from ‘ KEN ‘)<\/td>\u30d6\u30e9\u30f3\u30af\u304c\u6d88\u3048\u308b\u3002
LEADING\uff1a\u5de6\u3001TRAIRING\uff1a\u53f3\u3001BOTH\uff1a\u4e21\u65b9<\/td><\/tr>
select REPLACE(‘char1′,’n’,’char2′);<\/td>char1\u5185\u306en\u3092char2\u306b\u5909\u63db\u3059\u308b<\/td><\/tr>
> ANY(select \u5217 from \u8868 where \u6761\u4ef6);<\/td>\u203bANY \u3044\u3065\u308c\u304b\u3088\u308a\u3082\u5927\u304d\u3044\uff08\u6700\u3082\u5c0f\u3055\u306a\u3082\u306e\u3088\u308a\u5927\u304d\u3044\uff09
\u5f8c\u8005\u306e\u7b54\u3048\u3092\u524d\u8005\u306b\u8fd4\u3059<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>\n<\/details>\n\n\n\n

LIKE\u6f14\u7b97\u5b50<\/strong><\/summary>\n

where\uff1a\u30b0\u30eb\u30fc\u30d7\u95a2\u6570\u3068\u4f75\u7528\u4e0d\u53ef
\u203bHaving\uff1a\u30b0\u30eb\u30fc\u30d7\u3057\u305f\u3082\u306e\u306b\u6761\u4ef6\u4ed8\u3051<\/p>\n\n\n\n

select \uff5ewhere \u5217 between A and B<\/td>A\u4ee5\u4e0aB\u4ee5\u4e0b<\/td><\/tr>
select \uff5ewhere \u5217 not between A and B<\/td>[A\u4ee5\u4e0aB\u4ee5\u4e0b]\u4ee5\u5916<\/td><\/tr>
select \uff5e where \u5217 in (‘A’,’B’,’C’,’D’)<\/td>A,B,C,D\u3092\u53d6\u308a\u51fa\u3059<\/td><\/tr>
select \uff5e where \u5217 LIKE ‘J%’\uff1b<\/td>\u5217\u5185\u306eJ\u304b\u3089\u59cb\u307e\u308b\u3082\u306e<\/td><\/tr>
select \uff5e where \u5217 LIKE ‘____s’\uff1b<\/td>\u5217\u304b\u3089\u6700\u5f8c\u300cs\u300d\u3067\u7d42\u308f\u308b\u3082\u306e<\/td><\/tr>
select \uff5e where \u5217 LIKE ‘%K%’\uff1b<\/td>K\u3092\u542b\u3080\u3082\u306e\u691c\u7d22<\/td><\/tr>
select \uff5e where \u5217 not LIKE ‘%K%’\uff1b<\/td><\/td><\/tr>
select \uff5e where \u5217 LIKE ‘%K%’\uff1b<\/td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>\n<\/details>\n\n\n\n

\u65e5\u4ed8\u95a2\u6570<\/strong><\/summary>\n
select date_format (\u5217,’%d\u65e5%m\u6708%y\u5e74’)from \u30c6\u30fc\u30d6\u30eb;<\/td>\u5e74\u6708\u65e5\u306e\u8868\u793a\uff08\uff5e\u65e5\u3001\uff5e\u6708\u3001\uff5e\u5e74\uff09<\/td><\/tr>
select now<\/td>\u73fe\u5728\u306e\u65e5\u6642<\/td><\/tr>
select CURDATE<\/td>\u65e5\u7a0b\u306e\u307f<\/td><\/tr>
select DATE_ADD(CURDATE(),Interval 2 MONTH)<\/td>DATE_ADD\uff1a2\u30ab\u6708\u5f8c\u3092\u8868\u793a
DATE_SUB\uff1a\uff12\u304b\u6708\u524d\u3092\u8868\u793a<\/td><\/tr>
Interval ‘3 2’ YEAR_MONTH<\/td>\uff13\u5e74\uff12\u304b\u6708<\/td><\/tr>
select \u5217, IFNULL (\u5217,0) from \u30c6\u30fc\u30d6\u30eb;<\/td>\u6307\u5b9a\u3057\u305f\u5217\u5185\u306eNULL\u3092\uff10\u306b\u3059\u308b<\/td><\/tr>
select NULL IF (\u5217,0) from \u30c6\u30fc\u30d6\u30eb;<\/td>\u6307\u5b9a\u3057\u305f\u5217\u5185\u306e\uff10\u306fNULL\u306b\u306a\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>\n<\/details>\n\n\n\n

\u30b0\u30eb\u30fc\u30d7\u95a2\u6570<\/strong><\/summary>\n

\u5e73\u5747\u3084\u5408\u8a08\u306a\u3069\u306e\u96c6\u8a08\u6642\u306b\u4f7f\u7528\u3002<\/p>\n\n\n\n

select AVG(\u5217) from \u30c6\u30fc\u30d6\u30eb;<\/td>\u5e73\u5747<\/td><\/tr>
select COUNT(\u5217) from \u30c6\u30fc\u30d6\u30eb;<\/td>\u5217\u5185\u306e\u884c\u6570\u3092\u6570\u3048\u308b\u3002<\/td><\/tr>
select COUNT (distinct \u5217)\uff5e<\/td>\u91cd\u8907\u3059\u308b\u3082\u306e\u3092\u9664\u304f<\/td><\/tr>
select MAX (\u5217)\uff5e<\/td>\u5217\u5185\u3067\u4e00\u756a\u9ad8\u3044\uff08\u4f4e\u3044\uff09\u5024\u3002MAX or MIN<\/td><\/tr>
select sum (\u5217)\uff5e<\/td>\u5408\u8a08<\/td><\/tr>
select \u5217,\u5217, MAX(\u5217) from emp group by \u5217,\u5217<\/td>group by\uff1a\u5217\u5185\u306e\uff5e\u3054\u3068\u306b
\uff11\u3064\u306e\u30b0\u30eb\u30fc\u30d7\u3068\u3057\u3066\u53cd\u6620\u3055\u305b\u3089\u308c\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n\n\n\n
\u96c6\u5408\u6f14\u7b97\u5b50<\/strong><\/summary>\n

UNION ALL\uff1a\u91cd\u8907\u3092\u542b\u3080
UNION\uff1a\u91cd\u8907\u3092\u9664\u304f<\/p>\n\n\n\n

\u4f8b\uff1aselect deptno from dept union all select deptno from emp;<\/p>\n<\/details>\n\n\n\n

\u8868\u306e\u7d50\u5408\uff1a\u7b49\u4fa1\u7d50\u5408<\/strong><\/summary>\n

\u30fb\u81ea\u7136\u7d50\u5408\uff1a\u91cd\u8907\u3059\u308b\u5217\u3092\u9664\u304f
\u30fb\u5217\u5185\u306e\u7d30\u5206\u5316(?)\uff1agroup by<\/p>\n\n\n\n

select \u5217\u540d from \u88681,\u88682
where \u88681.\u5217\u540d = \u88682.\u5217\u540d<\/td>		\u203b\u88681,2\uff1d\u5225\u540d<\/td><\/tr>
select \u5217\u540d from \u88681 JOIN \u88682 USING(\u5217);<\/td>\u5217\uff1a\u5171\u901a<\/td><\/tr>
select \u5217 from \u8868 1 Natural JOIN \u88682;<\/td>\u81ea\u7136\u7d50\u5408<\/td><\/tr>
select \u5217 from \u8868 1 cross JOIN \u88682;<\/td>\u76f4\u7a4d\u7d50\u5408<\/td><\/tr>
select \u5217 from \u8868 1 JOIN \u88682 ON \u7d50\u5408\u6761\u4ef6<\/td>ON\u53e5<\/td><\/tr>
select \u5217 from \u8868 1 Left outer JOIN \u88682 on \u7d50\u5408\u6761\u4ef6;<\/td>\u5916\u90e8\u7d50\u5408\u3002\uff08\u203bLeft or Right\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n\n\n\n
(,)Where \u3068JOIN ON \u306b\u3064\u3044\u3066<\/strong><\/summary>\n

select e.ename , d, dname ,d.deptno …(\u26051)<\/p>\n\n\n\n

\u26051\uff1a\u4ee5\u4e0b\u3001\u540c\u3058\u7d50\u679c
\u30fbfrom dept D join emp E where e.deptno = d.deptno;
\u30fbfrom dept D ,empE<\/p>\n\n\n\n

select e.ename , e.sal, d.dname , g.grade …(\u26052)<\/p>\n\n\n\n

\u26052
\u30fbfrom emp E, dept D ,salagradeG where \u6761\u4ef61 and \u6761\u4ef62
\u30fbfrom emp E, join dept D on \u6761\u4ef61 join salagradeG on \u6761\u4ef62<\/p>\n\n\n\n

\u21d2\u300c\u30c6\u30fc\u30d6\u30eb\u540d\u300d\u6307\u5b9a\u3001\u300c\u7d50\u5408\u6761\u4ef61\u300d\u300c\u7d50\u5408\u6761\u4ef62\u300d
\u21d2\u300c\u30c6\u30fc\u30d6\u30eb\u540d\u300d\u300c\u7d50\u5408\u6761\u4ef61\u300d\u3001\u300c\u30c6\u30fc\u30d6\u30eb\u540d\u300d\u300c\u7d50\u5408\u6761\u4ef62\u300d
\u203b\u8aad\u307f\u3001\u8ffd\u52a0\u3057\u3084\u3059\u3044<\/p>\n\n\n\n

\u203b
(,)\u533a\u5207\u308a\u21d2\u53e4\u3044\u66f8\u304d\u65b9
JOIN\uff1a\u6a19\u6e96\u21d2\u7d50\u5408\u6761\u4ef6\uff1aON\u53e5
OK\u53e5\u306e\u5f8c\u306bwhere\u53ef\u80fd<\/p>\n<\/details>\n\n\n\n

\u30c6\u30fc\u30d6\u30eb\u4e0a\u64cd\u4f5c<\/h1>\n\n\n\n

[\u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u4f8b]<\/strong><\/p>\n\n\n\n

Create table SALESMAN (empno integer(4),name char(10)\uff5e);
\u203binteger\uff1a\u6570\u5b57\u6570
Desc \u30c6\u30fc\u30d6\u30eb\u540d\uff1a\u30c6\u30fc\u30d6\u30eb\u306e\u72b6\u6cc1\u78ba\u8a8d<\/p>\n\n\n\n

[\u30c7\u30fc\u30bf\u306e\u5909\u66f4\uff08\u884c\u306e\u524a\u9664\uff09]<\/strong><\/p>\n\n\n\n

DELETE from \u8868\u540d where \u524a\u9664\u5bfe\u8c61\u306e\u884c\u306e\u62bd\u51fa\u3059\u308b\u6761\u4ef6
\u21d2sal = 600 ;<\/span>\u306a\u3069<\/p>\n\n\n\n

\u30fb\u307e\u3068\u3081\u3066\u9805\u76ee\u524a\u9664
\u2192\uff5ewhere \u9805\u76ee\u540d in (\u9805\u76ee1,\u9805\u76ee2,\u9805\u76ee3);<\/p>\n\n\n\n

\u203b\u8868\u306e\u524a\u9664
DROP TABLE\uff1a\u3084\u308a\u76f4\u3057\u53ef
TRUNCATE TABLE\uff1a\u3084\u308a\u76f4\u3057\u4e0d\u53ef<\/p>\n\n\n\n

[\u526f\u554f\u3044\u5408\u308f\u305b]<\/strong><\/p>\n\n\n\n

\u5f8c\u6587\u306e\u5fdc\u3048\u3092\u524d\u6587\u306b\u51fa\u529b
\u30fbselect DNAME from dept where Deptno<\/span><\/strong> = (select Deptno<\/span><\/strong> from emp where ENAME = “ADAMS”)
\u30fbselect ename , sal from emp where sal<\/span><\/strong> > (select AVG(sal) from emp);
\u203bwhere \u304c sal \u3092\u6307\u5b9a<\/p>\n\n\n\n

select ename , job from emp where job = (select job from emp where ename = ‘ALLEN’);
\u21d2JOB\u3092\u7d5e\u3063\u3066ename\u3092\u5c0e\u304f<\/p>\n\n\n\n

DEPT\u8868\u304b\u3089EMP\u8868\u306eADAMS\u304c\u6240\u5c5e\u3059\u308bDNAME\u3092\u8868\u793a
\u21d2ADAM\u306eDNAME\u304c\u77e5\u308a\u305f\u3044
select dname from dept
where deptno =
(select deptno from emp where ename = ‘ADAMS’);\u3000\u203b\u6761\u4ef6<\/p>\n\n\n\n

\u203bdeptno\uff1a\u4f55\u3068\u95a2\u9023\u4ed8\u3051\u308b\u304b<\/p>\n\n\n\n

[\u30c7\u30fc\u30bf\u64cd\u4f5c\uff08\u6307\u5b9a\u3057\u3066\u5909\u66f4\uff09\u8a00\u8a9e]<\/strong><\/p>\n\n\n\n

\u30fbINSERT\uff1a\u884c\u306e\u8ffd\u52a0
\u30fbVALUES\uff1a\u5024\u306e\u6307\u5b9a<\/p>\n\n\n\n

\u4f8b\uff1a
INSERT INTO \u8868\u540d(\u5217\u540d1,\u5217\u540d2\u2026)values(\u50241,\u50242,\u2026);
\u21d2\u3069\u306e\u5217\u306b\u4f55\u3092\u8ffd\u52a0\u3059\u308b\u304b
\u2192Insert into \u8868\u540d values (\u8ffd\u52a0\u5185\u5bb9);
\u21d2\u884c\u306e\u8ffd\u52a0\u3002\u6307\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5217\u306fNULL\u304c\u5165\u308b<\/p>\n\n\n\n

[UPDATE\u6587 + where \u53e5]<\/strong><\/p>\n\n\n\n

\u4f8b\uff1aUPDATE EMP SET JOB = ‘SAKESMAN’ where ENAM = ‘GRANT’;
\u21d2’ENAME’\u304cGRANT\u306fJOB\u3092SALESMAN\u306b\u5909\u3048\u308b<\/p>\n\n\n\n

UPDATE \u8868\u540d SET \u5217\u540d1=\u50241 , \u5217\u540d2=\u50242
where \u5bfe\u8c61\u3068\u3059\u308b\u884c\u306e\u6761\u4ef6<\/p>\n\n\n\n

\u4f8b\uff1aupdate EMP set sal = sal *1,5 where ENAME = ‘KENNEDAY’;<\/p>\n\n\n\n

[\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u95a2\u4fc2]<\/strong><\/p>\n\n\n\n

\u30fb\u81ea\u52d5\u30b3\u30df\u30c3\u30c8\uff1a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u3092\u81ea\u52d5\u7684\u306b\u884c\u3046<\/p>\n\n\n\n

START TRANSACTION\uff1a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u958b\u59cb\uff08\u5b9f\u884c\u3057\u306a\u3044\u3068\u53cd\u6620\u3055\u308c\u306a\u3044\uff09<\/p>\n\n\n\n

Set Autocommit=0\uff1a\u81ea\u52d5\u30b3\u30df\u30c3\u30c8\u7121\u52b9
Set Autocommit=1\uff1a\u81ea\u52d5\u30b3\u30df\u30c3\u30c8\u6709\u52b9<\/p>\n\n\n\n

\u203b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u78ba\u5b9a\uff1aCOMMIT
\u203b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u53d6\u308a\u6d88\u3057\uff1aROLL BACK
\u21d2COMMIT\u5f8c\u306bROLLBACK\u306f\u3067\u304d\u306a\u3044
<\/p>\n\n\n\n

\u300c\u30bb\u30fc\u30d6\u30dd\u30a4\u30f3\u30c8\u300d\u3092\u4f5c\u6210\u3057\u3066t\u623b\u308c\u308b\u3088\u3046\u306b
savepoint \u547d\u540d\u21d2Roll back \u547d\u540d<\/p>\n","protected":false},"excerpt":{"rendered":"

\u57fa\u790e\u77e5\u8b58 \u30fbRDB\uff08\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\uff08\u9023\u643a\u30fb\u7d50\u5408\uff09\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff09\u30fbRDBS\uff1aRDS\u3092\u7ba1\u7406\u3059\u308b\u21d2\u7d50\u5408\u6761\u4ef6\uff1a\u4f55\u3092\u8ef8\u3068\u3057\u3066\u3001\u4f55\u3092\u7d50\u5408\u3055\u305b\u308b\u304b \u8907\u6570\u7d44\u307f\u5408\u308f\u305b\u3066DB\u3068\u306a\u308b\u3002\u756a\u53f7\u3092\u6307\u5b9a\u3059\u308b\u3002 [\u7528\u8a9e] \u4e3b\u30ad\u30fc \u5185\u5bb9\u304c\u91cd\u8907\u3059\u308b\u3053\u3068\u306f\u306a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[102],"tags":[],"class_list":["post-5143","post","type-post","status-publish","format-standard","hentry","category-other-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/matomemopad.com\/index.php?rest_route=\/wp\/v2\/posts\/5143","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/matomemopad.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/matomemopad.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/matomemopad.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/matomemopad.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5143"}],"version-history":[{"count":71,"href":"https:\/\/matomemopad.com\/index.php?rest_route=\/wp\/v2\/posts\/5143\/revisions"}],"predecessor-version":[{"id":12914,"href":"https:\/\/matomemopad.com\/index.php?rest_route=\/wp\/v2\/posts\/5143\/revisions\/12914"}],"wp:attachment":[{"href":"https:\/\/matomemopad.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/matomemopad.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/matomemopad.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}