{"id":2026,"date":"2018-11-07T18:13:15","date_gmt":"2018-11-07T09:13:15","guid":{"rendered":"https:\/\/www.dbsheetclient.jp\/blog\/?p=2026"},"modified":"2018-11-09T09:31:48","modified_gmt":"2018-11-09T00:31:48","slug":"delete%e3%81%a8%e9%a0%98%e5%9f%9f%e3%81%ae%e8%a7%a3%e6%94%be%ef%bc%88oracle%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.dbsheetclient.jp\/blog\/?p=2026","title":{"rendered":"DELETE\u3068\u9818\u57df\u306e\u89e3\u653e\uff08ORACLE\uff09"},"content":{"rendered":"

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

\"\u9632\u707d\u7591\u4f3c\u4f53\u9a13\"<\/a><\/p>\n

\u5148\u65e5\u3001\u65b0\u6a4b\u306e\u307b\u3046\u306b\u4ed5\u4e8b\u3067\u884c\u3063\u305f\u969b\u306b\u3001\u8fd1\u304f\u306e\u30d3\u30eb\u3067VR\uff08\u30d0\u30fc\u30c1\u30e3\u30eb\u30ea\u30a2\u30ea\u30c6\u30a3\uff09\u6620\u50cf\u3092\u4f7f\u3063\u305f\u707d\u5bb3\u7591\u4f3c\u4f53\u9a13\u304c\u3067\u304d\u308b\u9632\u707d\u4f53\u9a13\u8eca\u306b\u4e57\u3063\u3066\u4f53\u9a13\u3059\u308b\u6a5f\u4f1a\u304c\u3042\u308a\u307e\u3057\u305f\u3002
\u663c\u4f11\u307f\u304f\u3089\u3044\u306b\u3001\u8fd1\u304f\u306b\u6765\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u305b\u3063\u304b\u304f\u3060\u304b\u3089\u3068\u884c\u3063\u3066\u307f\u305f\u3068\u3053\u308d\u3001\u6771\u4eac\u6d88\u9632\u5e81\u304c\u4fdd\u6709\u3059\u308b\u9632\u707d\u4f53\u9a13\u8eca\u304c\u6b62\u307e\u3063\u3066\u3044\u3066\u30018\u4eba\u304f\u3089\u3044\u305a\u3064\u304c\u4e57\u3063\u3066\u3001\u30d8\u30c3\u30c9\u30de\u30a6\u30f3\u30c8\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3092\u88ab\u3063\u3066\u3001\u30de\u30f3\u30b7\u30e7\u30f3\u306b\u3044\u308b\u3068\u304d\u306b\u3001\u9707\u5ea6\uff17\u7a0b\u5ea6\u306e\u5730\u9707\u304c\u8d77\u304d\u305f\u5834\u5408\u306e\u7591\u4f3c\u4f53\u9a13\u304c\u3067\u304d\u307e\u3057\u305f\u3002
\u6642\u9593\u306f3\u5206\u307b\u3069\u3067\u3057\u305f\u304c\u3001\u4e0a\u304b\u3089\u7269\u304c\u843d\u3061\u308b\u306f\u5bb6\u5177\u304c\u5012\u308c\u308b\u306f\u3001\u30ac\u30e9\u30b9\u306f\u5272\u308c\u3001\u30c9\u30a2\u306f\u958b\u304b\u306a\u304f\u306a\u308b\u3057\u3001\u5916\u306e\u666f\u8272\u3082\u5927\u5909\u306a\u3053\u3068\u306b\uff01\u3000\u3044\u3084\u3042\uff5e\u60f3\u50cf\u3057\u3066\u3044\u305f\u3088\u308a\u3082\u8feb\u529b\u3082\u3042\u308a\u3001\u9154\u3044\u305d\u3046\u306a\u6c17\u5206\u306b\uff01\u3000\u3068\u3066\u3082\u7acb\u3063\u3066\u3044\u3089\u308c\u307e\u305b\u3093\u3002\u9707\u5ea6\uff17\u3060\u3068\u3053\u3093\u306a\u306b\u51c4\u3044\u3093\u3067\u3059\u306d\u3002<\/p>\n

\u5730\u9707\u5927\u56fd\u3067\u3042\u308b\u65e5\u672c\u3001\u3044\u3064\u305d\u3046\u3044\u3046\u5927\u304d\u306a\u5730\u9707\u306b\u906d\u9047\u3059\u308b\u304b\u77e5\u308c\u306a\u3044\u306e\u3067\u3001\u3068\u3063\u3055\u306b\u3069\u3046\u52d5\u3044\u305f\u3089\u3044\u3044\u304b\uff1f\u3000\u306a\u304b\u306a\u304b\u60f3\u50cf\u304c\u3064\u304b\u306a\u3044\u3067\u3059\u3088\u306d\u3002\u4e00\u5ea6\u306f\u8a13\u7df4\u3068\u3057\u3066\u4f53\u9a13\u3057\u3066\u307f\u308b\u4fa1\u5024\u304c\u3042\u308b\u3068\u601d\u3044\u307e\u3057\u305f\u3002

\uff1c\u672c\u65e5\u306e\u984c\u6750\uff1e
<\/strong>DELETE\u3068\u9818\u57df\u306e\u89e3\u653e\uff08ORACLE\uff09<\/p>\n

<\/strong>ORACLE\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u3001\u4f7f\u7528\u3057\u3066\u3044\u308b\u8868\u9818\u57df\u306e\u30b5\u30a4\u30ba\u304c\u304b\u306a\u308a\u5927\u304d\u304f\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u306e\u3067\u3001\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u3066\u4f7f\u7528\u3067\u304d\u308b\u9818\u57df\u3092\u5897\u3084\u305d\u3046\u3068\u8003\u3048\u308b\u5834\u5408\u304c\u3042\u308b\u3068\u601d\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001DELETE\u6587\u3067\u524a\u9664\u3057\u3066\u30b3\u30df\u30c3\u30c8\u3057\u305f\u306e\u306b\u3001\u8868\u9818\u57df\u306e\u30b5\u30a4\u30ba\u304c\u5909\u308f\u3089\u306a\u3044\u3068\u3044\u3046\u72b6\u6cc1\u306b\u51fa\u304f\u308f\u3057\u3066\u3001\u56f0\u3063\u3066\u3057\u307e\u3046\u5834\u5408\u304c\u3042\u308b\u3068\u601d\u3044\u307e\u3059\u3002\u4eca\u56de\u306f\u3001\u3053\u306e\u5185\u5bb9\u306b\u3064\u3044\u3066\u53d6\u308a\u4e0a\u3052\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

\u4f8b\uff09
\u3067\u304d\u308b\u3060\u3051\u30b5\u30a4\u30ba\u304c\u5927\u304d\u3044\u30c6\u30fc\u30d6\u30eb\u3067\u78ba\u8a8d\u3057\u305f\u3044\u306e\u3067\u3001\u4ee5\u524d\u3001\u30d3\u30c3\u30c8\u30de\u30c3\u30d7\u30a4\u30f3\u30c7\u30c3\u30af\u30b9<\/a>\u306e\u984c\u6750\u306e\u3068\u304d\u306b\u4f5c\u6210\u3057\u305f\u3001\u300cT_CUSTOMER\u300d\u3068\u3044\u3046300\u4e07\u4ef6\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f7f\u3063\u3066\u307f\u307e\u3059\u3002<\/p>\n

\u30c6\u30fc\u30d6\u30eb\u306e\u5b9a\u7fa9\u306f\u3001
DESCRIBE T_CUSTOMER<\/p>\n

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

\u4ef6\u6570\u3092\u78ba\u8a8d\u3059\u308b\u3068
SELECT COUNT(*) FROM T_CUSTOMER;<\/p>\n

\"\u4ef6\u6570\u78ba\u8a8d\"<\/a><\/p>\n

\u00a0\u4ef6\u6570\u306f300\u4e07\u4ef6\u3002\u30c7\u30fc\u30bf\u306e\u4e2d\u8eab\u3092\u4e00\u90e8\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068\u3001
SELECT * FROM T_CUSTOMER
WHERE C_ID <= 30
ORDER BY C_ID;<\/p>\n

\u00a0\"\u30c7\u30fc\u30bf\u4e2d\u8eab\"<\/a><\/strong><\/p>\n

C_ID\u5217\u306f\u3001\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u306b\u756a\u53f7\u304c\u5897\u3048\u3066\u3044\u3063\u3066\u307e\u3059\u3002
\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u304c\u5360\u3081\u3066\u3044\u308b\u30b5\u30a4\u30ba\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3001<\/p>\n

SELECT SEGMENT_NAME, SEGMENT_TYPE, SUM(BYTES)\/1024\/1024 “MB”
FROM USER_SEGMENTS
WHERE SEGMENT_NAME LIKE ‘%T_CUSTOMER%’
GROUP BY SEGMENT_NAME, SEGMENT_TYPE
ORDER BY SEGMENT_TYPE DESC, SEGMENT_NAME;<\/p>\n

\"\u30c6\u30fc\u30d6\u30eb\u30b5\u30a4\u30ba\u78ba\u8a8d\"<\/a><\/p>\n

\u30c6\u30fc\u30d6\u30eb\u300cT_CUSTOMER\u300d\u304c64MB\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9(\u4e3b\u30ad\u30fc)\u300cPK_T_CUSTOMER\u300d\u304c47MB\u3067\u3042\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u3001200\u4e07\u4ef6\u306e\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u3066\u307f\u307e\u3059\u3002
DELETE FROM T_CUSTOMER
WHERE C_ID <= 2000000;<\/p>\n

\"\u30c7\u30fc\u30bfDelete\"<\/a><\/p>\n

\u3053\u306e\u6642\u70b9\u3067\u3001\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u306e\u5360\u3081\u3066\u3044\u308b\u30b5\u30a4\u30ba\u3092\u518d\u5ea6\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"\u30c6\u30fc\u30d6\u30eb\u30b5\u30a4\u30ba\u78ba\u8a8d\"<\/a><\/p>\n

\u78ba\u8a8d\u3057\u305f\u3068\u3053\u308d\u3001\u30b5\u30a4\u30ba\u306f\u5168\u304f\u5909\u5316\u304c\u306a\u3044\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002
\u3053\u306e\u7406\u7531\u306f\u3001DELETE\u6587\u3067\u306f\u3001ORACLE\u306e\u30cf\u30a4\u30a6\u30a9\u30fc\u30bf\u30fc\u30de\u30fc\u30af(HWM)\u306b\u5909\u5316\u306f\u306a\u304f\u3001\u4e00\u5ea6\u78ba\u4fdd\u3057\u305f\u9818\u57df\u306f\u89e3\u653e\u3055\u308c\u306a\u3044\u305f\u3081\u3067\u3059\u3002\u30cf\u30a4\u30a6\u30a9\u30fc\u30bf\u30fc\u30de\u30fc\u30af(HWM)\u3068\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u306a\u3069\u306b\u5272\u308a\u5f53\u3066\u305f\u30d6\u30ed\u30c3\u30af\u306e\u4e2d\u3067\u3001\u4eca\u307e\u3067\u30c7\u30fc\u30bf\u304c\u633f\u5165\u3055\u308c\u305f\u3053\u3068\u304c\u3042\u308b\u6700\u5f8c\u5c3e\u306e\u30d6\u30ed\u30c3\u30af\u306e\u3053\u3068\u3067\u3001\u305d\u306e\u4f4d\u7f6e\u304c\u5909\u308f\u3089\u306a\u3044\u3068\u9818\u57df\u306f\u89e3\u653e\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n

\u3053\u306e\u30cf\u30a4\u30a6\u30a9\u30fc\u30bf\u30fc\u30de\u30fc\u30af(HWM)\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u65b9\u6cd5\u3068\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002
\uff11\uff0eTRUNCATE \u3067\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3059\u308b\u3002
\u3000\u3000\u305f\u3060\u3057\u3001\u30c7\u30fc\u30bf\u3092\u5168\u4ef6\u524a\u9664\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002
\u3000\u3000\uff08\u203b\u6700\u521d\u306b CREATE TABLE AS SELECT \u3067\u5143\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u5225\u30c6
\u3000\u3000\u3000\u30fc\u30d6\u30eb\u306b\u30b3\u30d4\u30fc\u3057\u3066\u304a\u3051\u3070\u3001TRUNCATE\u5f8c\u306b\u30c7\u30fc\u30bf\u3092\u6d41\u3057
\u3000\u3000\u3000\u8fbc\u3080\u3053\u3068\u306f\u3067\u304d\u307e\u3059\uff09
\uff12\uff0eExport\/Import\u3067\u30c7\u30fc\u30bf\u3092\u5fa9\u5143\u3059\u308b\u3002
\u3000\u3000Export\u3057\u305f\u5f8c\u306b\u3001\u4e00\u5ea6\u30c6\u30fc\u30d6\u30eb\u3092DROP\u3057\u3066\u524a\u9664\u3057\u3066\u304b\u3089
\u3000\u3000Import\u3057\u307e\u3059\u3002
\uff13\uff0eALTER TABLE MOVE \u3067\u30c6\u30fc\u30d6\u30eb\u3092\u65b0\u3057\u3044\u30bb\u30b0\u30e1\u30f3\u30c8\u306b\u79fb\u52d5\u3057
\u3000\u3000\u3066\u518d\u4f5c\u6210\u3059\u308b\u3002
\uff14\uff0eALTER TABLE SHRINK SPACE \u306b\u3088\u308b\u65ad\u7247\u5316\u306e\u89e3\u6d88\u3002<\/p>\n

\u305d\u308c\u3067\u306f\u3001\uff11\uff0e\u306eTRUNCATE\u6587\u3067\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u3066\u307f\u307e\u3059\u3002
\u305d\u306e\u524d\u306b\u3001\u30c7\u30fc\u30bf\u3092\u623b\u305b\u308b\u3088\u3046\u306b\u5225\u30c6\u30fc\u30d6\u30eb\u306b\u30b3\u30d4\u30fc\u3057\u307e\u3059\u3002<\/p>\n

CREATE TABLE COPY_T_CUSTOMER NOLOGGING
AS SELECT * FROM T_CUSTOMER;<\/p>\n

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

TRUNCATE\u6587\u3067\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u307e\u3059\u3002
TRUNCATE TABLE T_CUSTOMER;<\/p>\n

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

\u51e6\u7406\u6642\u9593\u3082DELETE\u6587\u306b\u6bd4\u3079\u305f\u3089\u3001\u5168\u7136\u901f\u3044\u3067\u3059\u3002<\/p>\n

\u3053\u306e\u6642\u70b9\u3067\u518d\u5ea6\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"truncate\u5f8c\u306e\u30c6\u30fc\u30d6\u30eb\u30b5\u30a4\u30ba\"<\/a><\/p>\n

TRUNCATE\u3057\u305f\u3089\u3001\u30c6\u30fc\u30d6\u30eb\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3068\u3082\u30010.625MB \u3068\u3044\u3046\u3053\u3068\u3067\u3001\u9818\u57df\u304c\u5927\u304d\u304f\u89e3\u653e\u3055\u308c\u305f\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u6700\u521d\u306b\u30c7\u30fc\u30bf\u3092\u30b3\u30d4\u30fc\u3057\u3066\u4f5c\u6210\u3057\u305f COPY_T_CUSTOMER \u30c6\u30fc\u30d6\u30eb\u3082\u300122MB\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u5143\u306e64MB\u3088\u308a\u306f\u5c0f\u3055\u304f\u4f5c\u6210\u3055\u308c\u308b\u3053\u3068\u3082\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u5f8c\u3001\u30b3\u30d4\u30fc\u3057\u305f\u30c7\u30fc\u30bf\u3092\u623b\u3057\u3066COMMIT\u3057\u3001\u30b3\u30d4\u30fc\u3057\u305f\u4e0d\u8981\u306a\u30c6\u30fc\u30d6\u30eb\u3092\u524a\u9664\u3057\u307e\u3059\u3002
INSERT INTO T_CUSTOMER SELECT * FROM COPY_T_CUSTOMER;
COMMIT;
DROP TABLE COPY_T_CUSTOMER;<\/p>\n

\"\u30c7\u30fc\u30bfinsert\"<\/a><\/p>\n

\u518d\u5ea6\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"insert\u5f8c\u306e\u30c6\u30fc\u30d6\u30eb\u30b5\u30a4\u30ba\"<\/a><\/p>\n

\u78ba\u304b\u306b\u3001T_CUSTOMER\u306e\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba\u306f\u300122MB\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u308230MB\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n

\u6b21\u306b\u3001\uff12\uff0e\u306eExport\/Import\u3092\u8a66\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\u518d\u5ea6\u3001\u30c7\u30fc\u30bf\u3092300\u4e07\u4ef6\u4f5c\u6210\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u4ee5\u524d\u3001\u30d0\u30eb\u30af\u51e6\u7406<\/a>\u306e\u984c\u6750\u306e\u3068\u304d\u306e\u65b9\u6cd5\u3067\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n

\"300\u4e07\u4ef6\u767b\u9332\"<\/a><\/p>\n

\u518d\u5ea6\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"\u30c6\u30fc\u30d6\u30eb\u30b5\u30a4\u30ba\u78ba\u8a8d\"<\/a><\/p>\n

\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u3001\u518d\u5ea6200\u4e07\u4ef6\u306e\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u307e\u3059\u3002<\/p>\n

\"200\u4e07\u4ef6\u524a\u9664\"<\/a><\/p>\n

\u3053\u306e\u5f8c\u3001Export\/Import\u306b\u3088\u3063\u3066\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u306a\u304a\u3057\u307e\u3059\u3002<\/p>\n

expdp blog_test\/\u30d1\u30b9\u30ef\u30fc\u30c9 directory=DP_DIR tables=t_customer dumpfile=t_customer.dmp
\uff08\u203b\u51e6\u7406\u3092\u884c\u3046\u524d\u306b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u4f5c\u6210\u3068\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3078\u306eread\/write\u6a29\u9650\u306e\u4ed8\u4e0e\u304c\u5fc5\u8981\uff09<\/p>\n

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

\u00a0\u8868\u3092\u524a\u9664\u3057\u307e\u3059\u3002
DROP TABLE T_CUSTOMER;<\/p>\n

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

\u5148\u307b\u3069\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3057\u305f\u30c7\u30fc\u30bf\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\n

impdp blog_test\/\u30d1\u30b9\u30ef\u30fc\u30c9 directory=DP_DIR dumpfile=t_customer.dmp<\/p>\n

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

\u3053\u3053\u3067\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"import\u5f8c\u306e\u30c6\u30fc\u30d6\u30eb\u30b5\u30a4\u30ba\"<\/a><\/p>\n

T_CUSTOMER\u306e\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba\u306f\u300122MB\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u308218MB\u3068\u306a\u308a\u3001\u9818\u57df\u304c\u89e3\u653e\u3055\u308c\u305f\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n

\u6b21\u306b\u3001\uff13\uff0e\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u65b0\u3057\u3044\u30bb\u30b0\u30e1\u30f3\u30c8\u306b\u8907\u88fd\u3057\u3001\u65e2\u5b58\u306e\u3082\u306e\u3092\u524a\u9664\u3059\u308b\u3068\u3044\u3046\u65b9\u6cd5\uff08\u30c6\u30fc\u30d6\u30eb\u306e\u79fb\u52d5\uff09\u306b\u3088\u308b\u518d\u4f5c\u6210\u3092\u884c\u3063\u3066\u307f\u307e\u3059\u3002<\/p>\n

\u307e\u305a\u306f\u3001\u518d\u5ea6300\u4e07\u4ef6\u306e\u30c7\u30fc\u30bf\u306b\u623b\u3057\u3001\u305d\u306e\u5f8c\u3001200\u4e07\u4ef6\u306e\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u307e\u3059\u3002\uff08\u52d5\u4f5c\u306b\u3064\u3044\u3066\u306f\u7701\u7565\uff09
\u3053\u306e\u3068\u304d\u306e\u30c6\u30fc\u30d6\u30eb\u30fb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u30b5\u30a4\u30ba\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u304c64MB\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c47MB\u3002<\/p>\n

ALTER TABLE T_CUSTOMER MOVE;<\/p>\n

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

\u518d\u5ea6\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"alter_move\u5f8c\u306e\u30c6\u30fc\u30d6\u30eb\u30b5\u30a4\u30ba\"<\/a><\/p>\n

\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u304c64MB\u304b\u308922MB\u306b\u5c0f\u3055\u304f\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002
\u203bLONG \/ LONG RAW \u306e\u3042\u308b\u8868\u306f\u3001\u3053\u306e\u65b9\u6cd5\u3067\u306e\u79fb\u52d5\u306f\u3067\u304d\u306a\u3044\u3068\u306e\u3053\u3068\u3002<\/span><\/p>\n

\u6700\u5f8c\u306b\u3001\uff14\uff0e\u306eALTER TABLE SHRINK SPACE \u306b\u3088\u308b\u65ad\u7247\u5316\u306e\u89e3\u6d88\u3092\u8a66\u3057\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002
\u3053\u3061\u3089\u3082\u307e\u305a\u306f\u3001\u518d\u5ea6300\u4e07\u4ef6\u306e\u30c7\u30fc\u30bf\u306b\u623b\u3057\u3001\u305d\u306e\u5f8c\u3001200\u4e07\u4ef6\u306e\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u307e\u3059\u3002\uff08\u52d5\u4f5c\u306b\u3064\u3044\u3066\u306f\u7701\u7565\uff09
\u3053\u306e\u3068\u304d\u306e\u30c6\u30fc\u30d6\u30eb\u30fb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u30b5\u30a4\u30ba\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u304c64MB\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c47MB\u3002<\/p>\n

\u65ad\u7247\u5316\u306e\u89e3\u6d88\u3092\u3057\u305f\u3044\u30c6\u30fc\u30d6\u30eb\u300cT_CUSTOMER\u300d\u306b\u5bfe\u3057\u3066\u3001\u4ee5\u4e0b\u306eSQL\u3092\u9806\u306b\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n

ALTER TABLE T_CUSTOMER ENABLE ROW MOVEMENT;
ALTER TABLE T_CUSTOMER SHRINK SPACE CASCADE;
ALTER TABLE T_CUSTOMER DISABLE ROW MOVEMENT;<\/p>\n

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

2\u756a\u76ee\u306eSHRINK SPACE CASCADE \u306e\u51e6\u7406\u306b\u591a\u5c11\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3057\u305f\u3002
\u3053\u3053\u3067\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

\"alter_shrink\u5f8c\u306e\u30c6\u30fc\u30d6\u30eb\u30b5\u30a4\u30ba\"<\/a><\/p>\n

T_CUSTOMER\u306e\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba\u306f\u300121.625MB\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u308216MB\u3068\u306a\u308a\u3001\u9818\u57df\u304c\u89e3\u653e\u3055\u308c\u305f\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002
\u306a\u304a\u3001\u30ec\u30b3\u30fc\u30c9\u6570\u304c\u5c11\u306a\u3044\u5834\u5408\u306b\u304a\u3044\u3066\u306f\u3001\u30cf\u30a4\u30a6\u30a9\u30fc\u30bf\u30fc\u30de\u30fc\u30af\u304c\u601d\u3063\u305f\u3088\u308a\u4f4e\u4e0b\u3057\u306a\u3044\u5834\u5408\u3082\u3042\u308a\u3001\u3053\u308c\u306f\u3001\u884c\u79fb\u884c\u3084\u884c\u9023\u9396\u306e\u72b6\u614b\u306b\u3088\u3063\u3066\u52b9\u679c\u306f\u7570\u306a\u308b\u3088\u3046\u3067\u3059\u3002\u9023\u9396\u72b6\u614b\u3092\u89e3\u6d88\u3057\u3066\u304b\u3089\u3067\u3042\u308c\u3070\u3001\u52b9\u679c\u306f\u9ad8\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n

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

IT\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30bf\u306e\u30b7\u30e5\u30a6\u3067\u3059\u3002 \u5148\u65e5\u3001\u65b0\u6a4b\u306e\u307b\u3046\u306b\u4ed5\u4e8b\u3067\u884c\u3063\u305f\u969b\u306b\u3001\u8fd1\u304f\u306e\u30d3\u30eb\u3067VR\uff08\u30d0\u30fc\u30c1\u30e3\u30eb\u30ea\u30a2\u30ea\u30c6\u30a3\uff09\u6620\u50cf\u3092\u4f7f\u3063\u305f\u707d\u5bb3\u7591\u4f3c\u4f53\u9a13\u304c\u3067\u304d\u308b\u9632\u707d\u4f53\u9a13\u8eca\u306b\u4e57\u3063\u3066\u4f53\u9a13\u3059\u308b\u6a5f\u4f1a\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u663c\u4f11\u307f\u304f\u3089\u3044\u306b\u3001\u8fd1\u304f\u306b\u6765\u3066\u3044\u308b\u3068\u3044 […]<\/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":[36],"tags":[],"class_list":["post-2026","post","type-post","status-publish","format-standard","hentry","category-delete"],"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\/2026","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=2026"}],"version-history":[{"count":10,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2026\/revisions"}],"predecessor-version":[{"id":2057,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/2026\/revisions\/2057"}],"wp:attachment":[{"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2026"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2026"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2026"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}