{"id":1415,"date":"2026-07-19T12:00:00","date_gmt":"2026-07-19T03:00:00","guid":{"rendered":"https:\/\/www.ecoop.net\/memo\/?p=1415"},"modified":"2026-07-19T23:59:47","modified_gmt":"2026-07-19T14:59:47","slug":"oracle-join-syntax","status":"publish","type":"post","link":"https:\/\/www.ecoop.net\/memo\/archives\/oracle-join-syntax.html","title":{"rendered":"Oracle \u306e JOIN \u306e\u66f8\u304d\u65b9 \u2014 \u65e7\u8a18\u6cd5 (+) \u3068 ANSI \u69cb\u6587\u306e\u5bfe\u5fdc\u8868"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u53e4\u3044 Oracle \u306e\u30b3\u30fc\u30c9\u3092\u8aad\u3093\u3067\u3044\u308b\u3068\u3001FROM \u306b\u30c6\u30fc\u30d6\u30eb\u3092\u30ab\u30f3\u30de\u3067\u4e26\u3079\u3066 WHERE \u3067\u7d50\u5408\u3057\u305f\u308a\u3001<code>WHERE a.id = b.id(+)<\/code> \u306e\u3088\u3046\u306b <code>(+)<\/code> \u304c\u4ed8\u3044\u3066\u3044\u305f\u308a\u3059\u308b SQL \u306b\u51fa\u4f1a\u3044\u307e\u3059\u3002\u3053\u308c\u306f Oracle \u304c ANSI \u306e JOIN \u69cb\u6587\u306b\u5bfe\u5fdc\u3059\u308b\u524d\u304b\u3089\u4f7f\u308f\u308c\u3066\u304d\u305f\u65e7\u8a18\u6cd5\u3067\u3001<code>(+)<\/code> \u306f Oracle \u72ec\u81ea\u306e\u5916\u90e8\u7d50\u5408\u6f14\u7b97\u5b50\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7d50\u8ad6\u304b\u3089\u8a00\u3046\u3068\u3001\u30ab\u30f3\u30de\u7d50\u5408+WHERE \u306f INNER JOIN\u3001<code>(+)<\/code> \u306f LEFT JOIN \/ RIGHT JOIN \u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u5b9f\u969b\u306e Oracle Database \u3067\u4e21\u8005\u306e\u7d50\u679c\u304c\u4e00\u81f4\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u306a\u304c\u3089\u3001\u66f8\u304d\u63db\u3048\u306e\u5bfe\u5fdc\u8868\u3068\u3001\u66f8\u304d\u63db\u3048\u6642\u306b\u8e0f\u307f\u3084\u3059\u3044 Oracle \u56fa\u6709\u306e\u7656\u3092\u307e\u3068\u3081\u307e\u3059\u3002\u306a\u304a\u3001<strong>Oracle \u516c\u5f0f\u30de\u30cb\u30e5\u30a2\u30eb\u3082\u65b0\u3057\u304f\u66f8\u304f\u306a\u3089 ANSI \u69cb\u6587\u3092\u63a8\u5968\u3057\u3066\u3044\u307e\u3059<\/strong>(\u5f8c\u8ff0)\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u6e2c\u74b0\u5883\u306f Docker \u306e <code>gvenzl\/oracle-free:23-slim-faststart<\/code>(\u30d0\u30ca\u30fc\u8868\u8a18\u306f Oracle AI Database 26ai Free Release 23.26.2.0.0)\u3067\u3059\u3002\u6bd4\u8f03\u7528\u306e PostgreSQL 17.10 \/ MySQL 8.4.10 \u3082 Docker \u3067\u52d5\u304b\u3057\u3066\u3044\u307e\u3059\u3002\u30b5\u30f3\u30d7\u30eb\u306f\u6b21\u306e2\u8868\u3067\u3059\u3002<\/p>\n\n\n\n<!--more-->\n\n\n\n<pre class=\"wp-block-preformatted\">CREATE TABLE emp (id INT, name VARCHAR(20), dept_id INT);\nCREATE TABLE dept (dept_id INT, dept_name VARCHAR(20));\nINSERT INTO emp VALUES (1,'\u4f50\u85e4',10),(2,'\u9234\u6728',20),(3,'\u9ad8\u6a4b',NULL),(4,'\u7530\u4e2d',40);\nINSERT INTO dept VALUES (10,'\u55b6\u696d\u90e8'),(20,'\u958b\u767a\u90e8'),(30,'\u7dcf\u52d9\u90e8');\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u6a4b\u306f dept_id \u304c NULL\u3001\u7530\u4e2d\u306e dept_id 40 \u306f dept \u5074\u306b\u5b58\u5728\u305b\u305a\u3001\u7dcf\u52d9\u90e8(30)\u306f emp \u5074\u306b\u8ab0\u3082\u3044\u306a\u3044\u3001\u3068\u3044\u3046\u914d\u7f6e\u3067\u3059\u3002\u306a\u304a\u3001\u8907\u6570\u884c\u3092\u307e\u3068\u3081\u3066\u66f8\u304f <code>VALUES (\u2026),(\u2026)<\/code> \u5f62\u5f0f\u306e INSERT \u3092 Oracle \u304c\u53d7\u3051\u4ed8\u3051\u308b\u306e\u306f 23ai \u4ee5\u964d\u3067\u3059\u3002\u305d\u308c\u3088\u308a\u53e4\u3044 Oracle \u3067\u624b\u5143\u306b\u518d\u73fe\u3059\u308b\u5834\u5408\u306f\u3001INSERT \u6587\u30921\u884c\u305a\u3064\u306b\u5206\u3051\u3066\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5bfe\u5fdc\u8868: \u65e7\u8a18\u6cd5\u3068 ANSI \u69cb\u6587<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u65e7 Oracle \u8a18\u6cd5<\/th><th>ANSI \u69cb\u6587<\/th><th>\u610f\u5473<\/th><\/tr><\/thead><tbody><tr><td><code>FROM emp, dept WHERE emp.dept_id = dept.dept_id<\/code><\/td><td><code>FROM emp INNER JOIN dept ON emp.dept_id = dept.dept_id<\/code><\/td><td>\u5185\u90e8\u7d50\u5408<\/td><\/tr><tr><td><code>FROM emp, dept WHERE emp.dept_id = dept.dept_id(+)<\/code><\/td><td><code>FROM emp LEFT JOIN dept ON emp.dept_id = dept.dept_id<\/code><\/td><td>\u5de6\u5916\u90e8\u7d50\u5408<\/td><\/tr><tr><td><code>FROM emp, dept WHERE emp.dept_id(+) = dept.dept_id<\/code><\/td><td><code>FROM emp RIGHT JOIN dept ON emp.dept_id = dept.dept_id<\/code><\/td><td>\u53f3\u5916\u90e8\u7d50\u5408<\/td><\/tr><tr><td>(\u66f8\u3051\u306a\u3044 \u2192 \u5f8c\u8ff0)<\/td><td><code>FROM emp FULL OUTER JOIN dept ON emp.dept_id = dept.dept_id<\/code><\/td><td>\u5b8c\u5168\u5916\u90e8\u7d50\u5408<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><code>(+)<\/code> \u306f\u300c\u3053\u3061\u3089\u5074\u306b\u4e00\u81f4\u3059\u308b\u884c\u304c\u306a\u304f\u3066\u3082 NULL \u3067\u57cb\u3081\u3066\u6b8b\u3059\u300d\u5074\u3001\u3064\u307e\u308a NULL \u3067\u30d1\u30c7\u30a3\u30f3\u30b0\u3055\u308c\u308b\u5074\u306e\u5217\u306b\u4ed8\u3051\u307e\u3059\u3002dept \u5074\u306b\u4ed8\u3051\u308c\u3070\u300cemp \u306f\u5168\u884c\u6b8b\u3059\u300d= LEFT JOIN \u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30ab\u30f3\u30de\u7d50\u5408 \u21d4 INNER JOIN \u306e\u7d50\u679c\u4e00\u81f4<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">SELECT * FROM emp, dept WHERE emp.dept_id = dept.dept_id;\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7d50\u679c\u306f\u6b21\u306e2\u884c\u3067\u3001<code>INNER JOIN \u2026 ON<\/code> \u306b\u66f8\u304d\u63db\u3048\u3066\u3082\u540c\u30582\u884c\u304c\u8fd4\u308a\u307e\u3059(\u5b9f\u6e2c)\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>ID<\/th><th>NAME<\/th><th>DEPT_ID<\/th><th>DEPT_ID<\/th><th>DEPT_NAME<\/th><\/tr><\/thead><tbody><tr><td>1<\/td><td>\u4f50\u85e4<\/td><td>10<\/td><td>10<\/td><td>\u55b6\u696d\u90e8<\/td><\/tr><tr><td>2<\/td><td>\u9234\u6728<\/td><td>20<\/td><td>20<\/td><td>\u958b\u767a\u90e8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><code>SELECT *<\/code> \u3060\u3068 DEPT_ID \u304c2\u56de\u73fe\u308c\u308b\u70b9\u306f\u30ab\u30f3\u30de\u7d50\u5408\u3082 <code>ON<\/code> \u3082\u540c\u3058\u3067\u3059(<code>USING<\/code> \u3092\u4f7f\u3046\u30681\u56de\u306b\u30de\u30fc\u30b8\u3055\u308c\u307e\u3059)\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(+) \u21d4 LEFT JOIN \u306e\u7d50\u679c\u4e00\u81f4<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">SELECT * FROM emp, dept WHERE emp.dept_id = dept.dept_id(+);\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">dept \u5074\u306e\u5217\u306b <code>(+)<\/code> \u3092\u4ed8\u3051\u305f\u306e\u3067 emp \u306f\u5168\u884c\u6b8b\u308a\u3001\u7d50\u679c\u306f\u6b21\u306e4\u884c\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>ID<\/th><th>NAME<\/th><th>DEPT_ID<\/th><th>DEPT_ID<\/th><th>DEPT_NAME<\/th><\/tr><\/thead><tbody><tr><td>1<\/td><td>\u4f50\u85e4<\/td><td>10<\/td><td>10<\/td><td>\u55b6\u696d\u90e8<\/td><\/tr><tr><td>2<\/td><td>\u9234\u6728<\/td><td>20<\/td><td>20<\/td><td>\u958b\u767a\u90e8<\/td><\/tr><tr><td>3<\/td><td>\u9ad8\u6a4b<\/td><td>(NULL)<\/td><td>(NULL)<\/td><td>(NULL)<\/td><\/tr><tr><td>4<\/td><td>\u7530\u4e2d<\/td><td>40<\/td><td>(NULL)<\/td><td>(NULL)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<pre class=\"wp-block-preformatted\">SELECT * FROM emp LEFT JOIN dept ON emp.dept_id = dept.dept_id;\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3061\u3089\u3082\u540c\u4e00\u306e4\u884c\u3067\u3001\u4e21\u8005\u306e\u7d50\u679c\u304c\u4e00\u81f4\u3059\u308b\u3053\u3068\u3092\u5b9f\u6e2c\u3067\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002\u90e8\u7f72\u304c\u5f15\u3051\u306a\u304b\u3063\u305f\u9ad8\u6a4b(dept_id \u304c NULL)\u3068\u7530\u4e2d(dept_id 40 \u304c dept \u306b\u7121\u3044)\u304c\u3001dept \u5074 NULL \u306e\u307e\u307e\u6b8b\u308b\u306e\u304c\u5916\u90e8\u7d50\u5408\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(+) \u3067\u306f\u66f8\u3051\u306a\u3044\u3082\u306e: FULL OUTER JOIN<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u4e21\u65b9\u306e\u8868\u306e\u884c\u3092\u5168\u90e8\u6b8b\u3057\u305f\u3044\u300d\u304b\u3089\u3068 <code>(+)<\/code> \u3092\u4e21\u5074\u306b\u4ed8\u3051\u308b\u3068\u3001\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059(\u5b9f\u6e2c)\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">SELECT * FROM emp, dept WHERE emp.dept_id(+) = dept.dept_id(+);\n-- ORA-01468: a predicate may reference only one outer-joined table\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>(+)<\/code> \u306f\u3072\u3068\u3064\u306e\u6761\u4ef6\u3067\u3069\u3061\u3089\u304b\u7247\u5074\u306b\u3057\u304b\u4ed8\u3051\u3089\u308c\u307e\u305b\u3093\u3002\u5b8c\u5168\u5916\u90e8\u7d50\u5408\u304c\u5fc5\u8981\u306a\u3089 ANSI \u69cb\u6587\u3067\u66f8\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">SELECT * FROM emp FULL OUTER JOIN dept ON emp.dept_id = dept.dept_id;\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306f LEFT JOIN \u306e4\u884c\u306b\u3001emp \u5074\u306b\u8ab0\u3082\u3044\u306a\u3044\u7dcf\u52d9\u90e8(ID\u30fbNAME \u304c NULL)\u3092\u52a0\u3048\u305f5\u884c\u3092\u8fd4\u3057\u307e\u3059(\u5b9f\u6e2c)\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u516c\u5f0f\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u306f\u4ed6\u306b\u3082 <code>(+)<\/code> \u306e\u5236\u9650\u304c\u5217\u6319\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4e3b\u306a\u3082\u306e\u3060\u3051\u6319\u3052\u308b\u3068\u3001\u540c\u3058\u554f\u3044\u5408\u308f\u305b\u30d6\u30ed\u30c3\u30af\u3067 ANSI JOIN \u69cb\u6587\u3068\u6df7\u5728\u3067\u304d\u306a\u3044\u3001<code>(+)<\/code> \u4ed8\u304d\u306e\u6761\u4ef6\u3092 <code>OR<\/code> \u3067\u4ed6\u306e\u6761\u4ef6\u3068\u3064\u306a\u3052\u306a\u3044\u3001<code>IN<\/code> \u6761\u4ef6\u306b\u4f7f\u3048\u306a\u3044\u3001\u81ea\u5df1\u5916\u90e8\u7d50\u5408\u306b\u4f7f\u3048\u306a\u3044\u3001\u306a\u3069\u3067\u3059\u3002\u65e7\u8a18\u6cd5\u306f\u300c\u66f8\u3051\u305d\u3046\u3067\u66f8\u3051\u306a\u3044\u300d\u30d1\u30bf\u30fc\u30f3\u304c\u591a\u304f\u3001\u3053\u308c\u304c ANSI \u69cb\u6587\u3092\u63a8\u5968\u3059\u308b\u7406\u7531\u306b\u3082\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ANSI \u69cb\u6587\u306b\u66f8\u304d\u63db\u3048\u308b\u3068\u304d\u306e Oracle \u306e\u7656<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u66f8\u304d\u63db\u3048\u5148\u306e ANSI \u69cb\u6587\u5074\u306b\u3082\u3001Oracle \u56fa\u6709\u306e\u5f15\u3063\u304b\u304b\u308a\u304c2\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3072\u3068\u3064\u76ee\u306f <code>USING<\/code> \u3067\u3059\u3002<code>USING(dept_id)<\/code> \u3067\u7d50\u5408\u3057\u305f\u5834\u5408\u3001\u305d\u306e\u5217\u306b\u8868\u4fee\u98fe\u5b50(<code>emp.<\/code> \u306a\u3069)\u3092\u4ed8\u3051\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059(\u5b9f\u6e2c)\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">SELECT emp.dept_id FROM emp JOIN dept USING (dept_id);\n-- ORA-25154: column part of USING clause cannot have qualifier\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>USING<\/code> \u306e\u5217\u306f\u4fee\u98fe\u306a\u3057\u306e <code>dept_id<\/code> \u3068\u66f8\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u540c\u3058\u30af\u30a8\u30ea\u304c PostgreSQL 17 \/ MySQL 8.4 \u3067\u306f\u30a8\u30e9\u30fc\u306b\u306a\u3089\u305a\u901a\u308b(\u3069\u3061\u3089\u3082 10, 20 \u306e2\u884c)\u3053\u3068\u3082\u78ba\u8a8d\u3057\u305f\u306e\u3067\u3001\u4ed6\u306e DB \u304b\u3089\u6765\u305f\u4eba\u307b\u3069\u8e0f\u307f\u3084\u3059\u3044\u7656\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3075\u305f\u3064\u76ee\u306f <code>CROSS JOIN<\/code> \u3067\u3059\u3002\u76f4\u7a4d\u3092\u53d6\u308b <code>CROSS JOIN<\/code> \u306b\u7d50\u5408\u6761\u4ef6\u306e <code>ON<\/code> \u3092\u4ed8\u3051\u308b\u3068\u69cb\u6587\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059(\u5b9f\u6e2c)\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">SELECT * FROM emp CROSS JOIN dept ON emp.dept_id = dept.dept_id;\n-- ORA-03048: SQL reserved word 'ON' is not syntactically valid following ...\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306f PostgreSQL \u3068\u540c\u3058\u6319\u52d5\u3067\u3001\u9006\u306b MySQL \u3084 SQLite \u306f\u901a\u3057\u3066\u3057\u307e\u3044\u307e\u3059(\u3053\u306e\u9055\u3044\u306f <a href=\"\/memo\/archives\/2007-11-14-1.html\">SQL \u306e JOIN \u306e\u7a2e\u985e\u3068\u9055\u3044\u307e\u3068\u3081 \u2014 INNER\/LEFT\/RIGHT\/FULL\/CROSS\u30102026\u5e74\u66f4\u65b0\u3011<\/a> \u3067\u6271\u3063\u3066\u3044\u307e\u3059)\u3002\u6761\u4ef6\u3092\u4ed8\u3051\u305f\u3044\u306a\u3089\u7d20\u76f4\u306b <code>INNER JOIN \u2026 ON<\/code> \u3068\u66f8\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u306a\u304a <code>JOIN<\/code> = <code>INNER JOIN<\/code> \u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u7701\u7565\u306f Oracle \u3067\u3082\u5b9f\u6e2c\u3067\u7d50\u679c\u304c\u540c\u4e00\u306b\u306a\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059(<code>LEFT OUTER JOIN<\/code> \u306e <code>OUTER<\/code> \u7701\u7565\u306a\u3069\u3082\u3001Oracle \u304c ANSI \u69cb\u6587\u306b\u30d5\u30eb\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u4ee5\u4e0a\u540c\u69d8\u306b\u6709\u52b9\u3067\u3059)\u3002\u3069\u3053\u307e\u3067\u7701\u7565\u3059\u308b\u304b\u306e\u6574\u7406\u306f <a href=\"\/memo\/archives\/sql-join-shorthand.html\">SQL \u306e JOIN \u306f\u7701\u7565\u3067\u304d\u308b \u2014 INNER\/OUTER \u30ad\u30fc\u30ef\u30fc\u30c9\u3068\u30ab\u30f3\u30de\u7d50\u5408\u306e\u6574\u7406<\/a> \u306b\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u65b0\u3057\u304f\u66f8\u304f\u306a\u3089 ANSI \u69cb\u6587<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Oracle \u306e SQL Language Reference(Joins \u7bc0)\u306f\u3001\u5916\u90e8\u7d50\u5408\u306b\u3064\u3044\u3066\u6b21\u306e\u3088\u3046\u306b\u660e\u8a00\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Oracle recommends that you use the FROM clause OUTER JOIN syntax rather than the Oracle join operator.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u3064\u307e\u308a <code>(+)<\/code> \u3067\u306f\u306a\u304f FROM \u53e5\u306e OUTER JOIN \u69cb\u6587(ANSI \u69cb\u6587)\u3092\u4f7f\u3046\u3053\u3068\u3001\u3068\u3044\u3046\u516c\u5f0f\u306e\u63a8\u5968\u3067\u3059\u3002\u524d\u8ff0\u306e\u3068\u304a\u308a <code>(+)<\/code> \u306b\u306f FULL OUTER \u304c\u66f8\u3051\u306a\u3044\u30fbOR \u3084 IN \u3068\u7d44\u307f\u5408\u308f\u305b\u3089\u308c\u306a\u3044\u306a\u3069\u306e\u5236\u9650\u304c\u591a\u304f\u3001Oracle \u4ee5\u5916\u306e DB \u3067\u306f\u901a\u7528\u3057\u306a\u3044\u65b9\u8a00\u3067\u3082\u3042\u308a\u307e\u3059\u3002\u65e2\u5b58\u30b3\u30fc\u30c9\u3092\u8aad\u3080\u305f\u3081\u306e\u77e5\u8b58\u3068\u3057\u3066\u306f\u5fc5\u8981\u3067\u3059\u304c\u3001\u65b0\u898f\u306b\u66f8\u304f SQL \u3067\u9078\u3076\u7406\u7531\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3055\u3044\u3054\u306b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>(+)<\/code> \u306f\u300c\u4ed8\u3051\u305f\u5074\u304c NULL \u3067\u30d1\u30c7\u30a3\u30f3\u30b0\u3055\u308c\u308b\u5074\u300d\u3068\u899a\u3048\u308c\u3070\u3001\u65e7\u30b3\u30fc\u30c9\u306e\u8aad\u307f\u66ff\u3048\u306f\u3053\u306e\u8a18\u4e8b\u306e\u5bfe\u5fdc\u8868\u3069\u304a\u308a\u3067\u3059\u3002\u66f8\u304d\u63db\u3048\u306e\u969b\u306f\u3001FULL OUTER \u76f8\u5f53\u306f <code>(+)<\/code> \u3067\u306f\u66f8\u3051\u306a\u3044\u3053\u3068(ORA-01468)\u3001<code>USING<\/code> \u5217\u306b\u4fee\u98fe\u5b50\u3092\u4ed8\u3051\u3089\u308c\u306a\u3044\u3053\u3068(ORA-25154)\u3001<code>CROSS JOIN<\/code> \u306b <code>ON<\/code> \u3092\u4ed8\u3051\u3089\u308c\u306a\u3044\u3053\u3068(ORA-03048)\u306e3\u70b9\u306b\u6c17\u3092\u3064\u3051\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3042\u308f\u305b\u3066\u8aad\u307f\u305f\u3044:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"\/memo\/archives\/2007-11-14-1.html\">SQL \u306e JOIN \u306e\u7a2e\u985e\u3068\u9055\u3044\u307e\u3068\u3081 \u2014 INNER\/LEFT\/RIGHT\/FULL\/CROSS\u30102026\u5e74\u66f4\u65b0\u3011<\/a><\/li>\n\n\n\n<li><a href=\"\/memo\/archives\/sql-join-shorthand.html\">SQL \u306e JOIN \u306f\u7701\u7565\u3067\u304d\u308b \u2014 INNER\/OUTER \u30ad\u30fc\u30ef\u30fc\u30c9\u3068\u30ab\u30f3\u30de\u7d50\u5408\u306e\u6574\u7406<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u53e4\u3044 Oracle \u306e\u30b3\u30fc\u30c9\u3092\u8aad\u3093\u3067\u3044\u308b\u3068\u3001FROM \u306b\u30c6\u30fc\u30d6\u30eb\u3092\u30ab\u30f3\u30de\u3067\u4e26\u3079\u3066 WHERE \u3067\u7d50\u5408\u3057\u305f\u308a\u3001WHERE a.id = b.id(+) \u306e\u3088\u3046\u306b (+) \u304c\u4ed8\u3044\u3066\u3044\u305f\u308a\u3059\u308b SQL \u306b\u51fa\u4f1a\u3044\u307e\u3059\u3002\u3053\u308c\u306f O &hellip; <a href=\"https:\/\/www.ecoop.net\/memo\/archives\/oracle-join-syntax.html\" class=\"more-link\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">Oracle \u306e JOIN \u306e\u66f8\u304d\u65b9 \u2014 \u65e7\u8a18\u6cd5 (+) \u3068 ANSI \u69cb\u6587\u306e\u5bfe\u5fdc\u8868<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[89,135],"tags":[],"class_list":["post-1415","post","type-post","status-publish","format-standard","hentry","category-web-dev","category-server"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/posts\/1415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/comments?post=1415"}],"version-history":[{"count":2,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/posts\/1415\/revisions"}],"predecessor-version":[{"id":1425,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/posts\/1415\/revisions\/1425"}],"wp:attachment":[{"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/media?parent=1415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/categories?post=1415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/tags?post=1415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}