{"id":2112,"date":"2019-04-19T08:59:42","date_gmt":"2019-04-18T23:59:42","guid":{"rendered":"https:\/\/www.dbsheetclient.jp\/blog\/?p=2112"},"modified":"2019-04-19T10:31:08","modified_gmt":"2019-04-19T01:31:08","slug":"%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9%e3%83%88%e3%83%aa%e3%82%ac%e3%83%bc%ef%bc%88oracle%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.dbsheetclient.jp\/blog\/?p=2112","title":{"rendered":"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c8\u30ea\u30ac\u30fc\uff08Oracle\uff09"},"content":{"rendered":"

\u00a0IT\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30bf\u306e\u30b7\u30e5\u30a6\u3067\u3059\u3002<\/p>\n

\"IMG_1978\"<\/a><\/p>\n

\u685c\u306e\u6642\u671f\u3082\u7d42\u308f\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002\u305f\u3060\u3001\u4eca\u5e74\u306f\u685c\u304c\u54b2\u3044\u3066\u304b\u3089\u3001\u5c11\u3057\u5bd2\u304b\u3063\u305f\u306e\u3067\u3001\u685c\u304c\u3059\u3050\u306b\u306f\u6563\u3089\u305a\u3001\u4f8b\u5e74\u3088\u308a\u9577\u304f\u3001\u685c\u3092\u697d\u3057\u3080\u3053\u3068\u304c\u3067\u304d\u305f\u3088\u3046\u306b\u601d\u3044\u307e\u3059\u3002
\u6771\u5317\u3084\u5317\u6d77\u9053\u306a\u3069\u306f\u3001\u307e\u3060\u3053\u308c\u304b\u3089\u304c\u3044\u3088\u3044\u3088\u672c\u756a\u3068\u3044\u3046\u3053\u3068\u306a\u306e\u3067\u3001\u4ed5\u4e8b\u3067\u51fa\u5f35\u3068\u304b\u3042\u308c\u3070\u3064\u3044\u3067\u306b\u304a\u82b1\u898b\u3082\u3067\u304d\u308b\u306e\u3067\u3059\u304c\u3001\u305d\u3046\u3044\u3046\u6a5f\u4f1a\u304c\u3042\u308b\u304b\u306a\uff5e\u3002<\/p>\n

\uff1c\u672c\u65e5\u306e\u984c\u6750\uff1e<\/strong>
\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c8\u30ea\u30ac\u30fc\uff08Oracle\uff09<\/strong><\/p>\n

\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c8\u30ea\u30ac\u30fc\u306b\u3064\u3044\u3066\u3001\u307e\u3060\u30d6\u30ed\u30b0\u3067\u53d6\u308a\u4e0a\u3052\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u4eca\u56de\u3001\u53d6\u308a\u4e0a\u3052\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002
\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c8\u30ea\u30ac\u30fc\u3068\u306f\u3001\u30d7\u30ed\u30b7\u30fc\u30b8\u30e3\u3084\u30d5\u30a1\u30f3\u30af\u30b7\u30e7\u30f3\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u683c\u7d0d\u3055\u308c\u305fPL\/SQL\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u304c\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306a\u3069\u304b\u3089\u660e\u793a\u7684\u306b\u30b3\u30fc\u30eb\u3055\u308c\u3066\u547c\u3073\u51fa\u3059\u306e\u3067\u306f\u306a\u304f\u3001\u4f55\u3089\u304b\u306e\u30a4\u30d9\u30f3\u30c8\u3092\u304d\u3063\u304b\u3051\u3068\u3057\u3066\u81ea\u52d5\u7684\u306b\u8d77\u52d5\u3055\u308c\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n

\u30c8\u30ea\u30ac\u30fc\u306b\u306f\u3001\u5927\u304d\u304f\u306f\u300cDML\u30c8\u30ea\u30ac\u30fc\u300d\u300cDDL\u30c8\u30ea\u30ac\u30fc\u300d\u300c\u305d\u306e\u4ed6\u300d\u306e3\u3064\u306e\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002
\u300cDML\u30c8\u30ea\u30ac\u30fc\u300d\u306f\u3001\u7279\u5b9a\u306e\u8868\u306b\u5bfe\u3057\u3066DML\u64cd\u4f5c(INSERT, UPDATE, DELETE\u306a\u3069)\u304c\u884c\u308f\u308c\u308b\u3068\u304d\u306b\u8d77\u52d5\u3059\u308b\u3082\u306e
\u300cDDL\u30c8\u30ea\u30ac\u30fc\u300d\u306f\u3001DDL\u64cd\u4f5c(CREATE, ALTER, DROP\u306a\u3069)\u306b\u3088\u308a\u8d77\u52d5\u3059\u308b\u3082\u306e
\u300c\u305d\u306e\u4ed6\u300d\u306b\u3064\u3044\u3066\u306f\u3001
\u3000\u30fb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u30ed\u30b0\u30a4\u30f3\u3084\u30ed\u30b0\u30aa\u30d5\u3059\u308b\u3068\u304d
\u3000\u30fb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8d77\u52d5\u6642\u3084\u505c\u6b62\u6642
\u3000\u30fb\u30a8\u30e9\u30fc\u306e\u767a\u751f\u6642
\u306a\u3069\u3067\u8d77\u52d5\u3059\u308b\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002
\u4e00\u822c\u7684\u306b\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u300cDML\u30c8\u30ea\u30ac\u30fc\u300d\u306b\u3064\u3044\u3066\u3067\u3059\u304c\u3001\u6587\u30c8\u30ea\u30ac\u30fc\u3001\u884c\u30c8\u30ea\u30ac\u30fc\u3068\u3044\u3046\u7a2e\u985e\u304c\u3042\u308a\u3001\u3055\u3089\u306b\u3001\u51e6\u7406\u306e\u524d\u5f8c\u306e\u3069\u3061\u3089\u3067\u8d77\u52d5\u3055\u305b\u308b\u304b\u3068\u3044\u3046\u3001\u300cBEFORE\u30c8\u30ea\u30ac\u30fc\u300d\u300cAFTER\u30c8\u30ea\u30ac\u30fc\u300d\u3068\u3044\u3046\u5206\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u4f8b\uff09
\u4eca\u56de\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u7ba1\u7406\u7528\u306e\u300cACCOUNTS\u300d\u30c6\u30fc\u30d6\u30eb\u3068\u3044\u3046\u3082\u306e\u304c\u3042\u3063\u305f\u3068\u3057\u3066\u3001\u305d\u308c\u306b\u5bfe\u3057\u3066\u306e\u3001INSERT, UPDATE, DELETE \u304c\u884c\u308f\u308c\u308b\u30bf\u30a4\u30df\u30f3\u30b0(AFTER)\u3067\u3001\u51e6\u7406\u306e\u30ed\u30b0\u3092\u300cACCOUNTS_LOG\u300d\u30c6\u30fc\u30d6\u30eb\u306b\u767b\u9332\u3059\u308b\u30c8\u30ea\u30ac\u30fc\u3092\u4f5c\u6210\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\u307e\u305a\u3001\u51e6\u7406\u306e\u30ed\u30b0\u3092\u767b\u9332\u3059\u308b\u300cACCOUNTS_LOG\u300d\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n

CREATE TABLE accounts_log(
log_date DATE
,old_account_id INT
,new_account_id INT
,action VARCHAR2(50));<\/p>\n

\"accounts_log\"<\/a><\/p>\n

\u6b21\u306b\u3001\u30c8\u30ea\u30ac\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3059\u304c\u3001\u300cACCOUNTS\u300d\u30c6\u30fc\u30d6\u30eb\u306b\u5bfe\u3057\u3066\u306e\u3001INSERT, UPDATE, DELETE \u304c\u884c\u308f\u308c\u3066\u30c7\u30fc\u30bf\u304c\u66f4\u65b0\u3055\u308c\u308b\u305f\u3073\u306b\u3001\u300cACCOUNTS_LOG\u300d\u30c6\u30fc\u30d6\u30eb\u306b\u3001\u51e6\u7406\u65e5\u3001\u5909\u66f4\u524d\u5f8c\u306e\u300cACCOUNT_ID\u300d\u3001\u305d\u3057\u3066\u51e6\u7406\u5185\u5bb9\u3092\u8a18\u9332\u3055\u305b\u307e\u3059\u3002
\u4eca\u56de\u306f\u3001\u884c\u30c8\u30ea\u30ac\u30fc\u306eAFTER\u30c8\u30ea\u30ac\u30fc\u3068\u3057\u3066\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n

CREATE OR REPLACE TRIGGER accounts_change_trigger
\u00a0 AFTER INSERT OR UPDATE OR DELETE
\u00a0 ON accounts FOR EACH ROW
DECLARE
\u00a0 log_action\u00a0 accounts_log.action%TYPE;
BEGIN
\u00a0 IF INSERTING THEN
\u00a0 \u00a0 log_action := ‘Insert’;
\u00a0 ELSIF UPDATING THEN
\u00a0 \u00a0 log_action := ‘Update’;
\u00a0 ELSIF DELETING THEN
\u00a0 \u00a0 log_action := ‘Delete’;
\u00a0 ELSE
\u00a0 \u00a0 DBMS_OUTPUT.PUT_LINE(‘This code is not reachable.’);
\u00a0 END IF;<\/p>\n

\u00a0 INSERT INTO accounts_log (log_date, old_account_id, new_account_id, action)
\u00a0 \u00a0 VALUES (SYSDATE, :OLD.account_id, :NEW.account_id, log_action);
END;
\/<\/p>\n

\"trigger\"<\/a><\/p>\n

\u30c8\u30ea\u30ac\u30fc\u306e\u4e2d\u3067\u3001\u300cFOR EACH ROW\u300d\u3092\u4ed8\u3051\u308b\u3053\u3068\u3067\u3001\u884c\u30c8\u30ea\u30ac\u30fc\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u3057\u3066\u3001:OLD.\u5217\u540d\u3001:NEW.\u5217\u540d\u3068\u3059\u308b\u3053\u3068\u3067\u3001\u5909\u66f4\u524d\u3068\u5909\u66f4\u5f8c\u306e\u5217\u540d\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\u305d\u308c\u3067\u306f\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306b\u3001\u300cACCOUNTS\u300d\u30c6\u30fc\u30d6\u30eb\u3078\u306e\u30c7\u30fc\u30bf\u306e\u767b\u9332\u3001\u4fee\u6b63\u3001\u524a\u9664\u3092\u9806\u306b\u884c\u3063\u3066\u307f\u307e\u3059\u3002<\/p>\n

INSERT INTO accounts(account_id, name) VALUES(101, ‘\u5c71\u7530\u3000\u592a\u90ce’);<\/p>\n

INSERT INTO accounts(account_id, name) VALUES(102, ‘\u9ad8\u6a4b\u3000\u4e09\u90ce’);<\/p>\n

UPDATE accounts SET NAME = ‘\u9ad8\u6a4b\u3000\u4e00\u90ce’ WHERE account_id = 102;<\/p>\n

DELETE FROM accounts WHERE account_id = 101;<\/p>\n

\"DML\"<\/a><\/p>\n

\u305d\u308c\u3067\u306f\u3001\u300cACCOUNTS_LOG\u300d\u30c6\u30fc\u30d6\u30eb\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\u300cLOG_DATE\u300d\u9805\u76ee\u306e\u8868\u793a\u3092\u6642\u523b\u307e\u3067\u51fa\u3059\u3088\u3046\u306b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u5909\u66f4\u3057\u307e\u3059\u3002
ALTER SESSION SET NLS_DATE_FORMAT=’YYYY\/MM\/DD HH24:MI:SS’;<\/p>\n

\u30c7\u30fc\u30bf\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002
SELECT * FROM accounts_log
ORDER BY log_date;<\/p>\n

\"select_accounts_log2\"<\/a><\/p>\n

\u305f\u3057\u304b\u306b\u3001\u300cACCOUNTS_LOG\u300d\u30c6\u30fc\u30d6\u30eb\u3078\u306e\u66f4\u65b0\u5c65\u6b74\u304c\u767b\u9332\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\u3053\u3053\u3067\u3001INSERT\u306e\u5834\u5408\u306f\u3001\u5909\u66f4\u524d\u306f\u30c7\u30fc\u30bf\u304c\u306a\u3044\u306e\u3067\u3001old_accounti_id \u306f NULL \u3067\u3042\u308a\u3001DELETE\u306e\u5834\u5408\u306f\u3001\u5909\u66f4\u5f8c\u306f\u30c7\u30fc\u30bf\u304c\u306a\u304f\u306a\u308b\u306e\u3067\u3001new_accounti_id \u306f NULL\u306b\u306a\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n

\u307e\u305f\u3001COMMIT\u3092\u3059\u308b\u524d\u306bROLLBACK\u3092\u3057\u3066\u307f\u308b\u3068\u300cACCOUNTS_LOG\u300d\u306e\u30c7\u30fc\u30bf\u306f\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n

ROLLBACK;
\"rollback\"<\/a><\/p>\n

\u518d\u5ea6\u3001\u300cACCOUNTS_LOG\u300d\u30c6\u30fc\u30d6\u30eb\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"select_accounts_log_sai\"<\/a><\/p>\n

\u5148\u307b\u3069\u898b\u3048\u3066\u3044\u305f\u30c7\u30fc\u30bf\u306f\u3001\u51e6\u7406\u304c\u53d6\u308a\u6d88\u3055\u308c\u305f\u306e\u3067\u3001\u30ed\u30b0\u304b\u3089\u3082\u53d6\u308a\u6d88\u3055\u308c\u3066\u3044\u308b\u306e\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u4eca\u65e5\u306f\u4ee5\u4e0a\u307e\u3067<\/p>\n","protected":false},"excerpt":{"rendered":"

\u00a0IT\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30bf\u306e\u30b7\u30e5\u30a6\u3067\u3059\u3002 \u685c\u306e\u6642\u671f\u3082\u7d42\u308f\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002\u305f\u3060\u3001\u4eca\u5e74\u306f\u685c\u304c\u54b2\u3044\u3066\u304b\u3089\u3001\u5c11\u3057\u5bd2\u304b\u3063\u305f\u306e\u3067\u3001\u685c\u304c\u3059\u3050\u306b\u306f\u6563\u3089\u305a\u3001\u4f8b\u5e74\u3088\u308a\u9577\u304f\u3001\u685c\u3092\u697d\u3057\u3080\u3053\u3068\u304c\u3067\u304d\u305f\u3088\u3046\u306b\u601d\u3044\u307e\u3059\u3002\u6771\u5317\u3084\u5317\u6d77\u9053\u306a\u3069\u306f\u3001\u307e\u3060\u3053\u308c\u304b\u3089\u304c […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"enabled":false},"version":2}},"categories":[10],"tags":[],"class_list":["post-2112","post","type-post","status-publish","format-standard","hentry","category-10"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2112"}],"version-history":[{"count":8,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2112\/revisions"}],"predecessor-version":[{"id":2129,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2112\/revisions\/2129"}],"wp:attachment":[{"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}