{"id":2423,"date":"2011-10-09T00:01:07","date_gmt":"2011-10-08T15:01:07","guid":{"rendered":"http:\/\/www.moonmile.net\/blog\/?p=2423"},"modified":"2011-10-09T00:01:07","modified_gmt":"2011-10-08T15:01:07","slug":"%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9%e3%82%a2%e3%82%af%e3%82%bb%e3%82%b9%e3%81%ae%e3%83%91%e3%83%95%e3%82%a9%e3%83%bc%e3%83%9e%e3%83%b3%e3%82%b9%e3%83%81%e3%83%a5%e3%83%bc%e3%83%8b","status":"publish","type":"post","link":"http:\/\/www.moonmile.net\/blog\/archives\/2423","title":{"rendered":"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a2\u30af\u30bb\u30b9\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u4f8b"},"content":{"rendered":"

2000\u4ef6\u306e\u30c7\u30fc\u30bf\u767b\u9332\u30672\u6642\u9593\u7a0b\u639b\u304b\u3063\u3066\u3044\u308b\u51e6\u7406\u3092\u300110\u5206\u7a0b\u5ea6\u306b\u77ed\u7e2e\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb…\u304c\u3067\u304d\u305f\u3089\u3044\u3044\u306a\u3041\u3002\u3063\u3066\u306e\u3092\u3001\u8003\u5bdf\u3082\u4ea4\u3048\u3066\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n

\u25a0\u64ec\u4f3c\u30b3\u30fc\u30c9<\/p>\n

\u30fb20\u56de\u307b\u3069\u306e SELECT \u6587\u304c\u547c\u3073\u51fa\u3055\u308c\u3066\u3044\u308b(\u3089\u3057\u3044)\u3002
\n\u30fb1\u4ef6\u306e\u30c7\u30fc\u30bf\u767b\u9332\u3067\u300120\u4ef6\u306e\u30c7\u30fc\u30bf\u633f\u5165\u304c\u3042\u308b\u3002<\/p>\n

\r\nfor i = 1 to 2000 \r\n\t\r\n\t\u4f55\u304b\u3068 SELECT \u51e6\u7406\u304c\u3042\u308b\u3002\r\n\t\u524d\u306e SELECT \u306e\u7d50\u679c\u3092\u5229\u7528\u3057\u3066\u3001\u6b21\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3059\u308b...\u3089\u3057\u3044\u3002\r\n\t\u6642\u306b\u306f if \u6587\u306a\u3069\u304c\u3042\u308b\u3002\r\n\tSELECT1\r\n\tSELECT2\r\n\t...\r\n\tSELECT20\r\n\r\n\t\u5e33\u7968\u7528\u306e\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u8a72\u5f53\u30ec\u30b3\u30fc\u30c9\u3092 DELETE \u3059\u308b\u3002\r\n\tDELETE1\r\n\tDELETE2\r\n\t...\r\n\tDELETE20\r\n\r\n\t\u5e33\u7968\u7528\u306e\u30c6\u30fc\u30d6\u30eb\u306b 20 \u4ef6\u30c7\u30fc\u30bf\u51fa\u529b\u3059\u308b\r\n\tINSERT1\r\n\tINSERT2\r\n\t...\r\n\tINSERT20\r\nnext\r\n<\/pre>\n
\u3053\u306e1\u56de\u306e\u30eb\u30fc\u30d7\u304c4\u79d2\u3050\u3089\u3044\u306a\u306e\u3067\u30014\u79d2\u00d72000\u56de = 8000\u79d2 \u2252 2\u6642\u9593\u8d85 \u3068\u3044\u3046\u5177\u5408\u3002<\/p>\n
\u25a0\u8003\u3048\u3089\u308c\u308b\u5bfe\u7b56<\/p>\n
1.
\n\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b SELECT \u3092\u4f55\u5ea6\u3082\u547c\u3073\u51fa\u3057\u3066\u3044\u308b\u304c\u3001\u3053\u308c\u304c\u6bce\u56de SqlCommand \u547c\u51fa\u3068\u306a\u3063\u3066\u3044\u308b\u3002\u306a\u306e\u3067\u3001\u6bce\u56de\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3059\u308b\u624b\u9593\u304c\u639b\u304b\u3063\u3066\u3044\u308b\u306e\u3067\u306f\uff1f\u3053\u308c\u3092\u3001\u3067\u304d\u308c\u3070\u4e00\u56de\u306e SqlCommand \u547c\u51fa\u306b\u3059\u308b\u3002\u305f\u3060\u3057\u3001SELECT1 \u304b\u3089 SELECT20 \u307e\u3067\u306e\u9593\u306f if \u6587\u304c\u5165\u3063\u305f\u308a\u3001\u52d5\u7684\u306b SQL \u6587\u3092\u4f5c\u3063\u3066\u3044\u305f\u308a\u3059\u308b\u306e\u3067\u3001\u5fc5\u305a\u3057\u3082\u3072\u3068\u3064\u306b\u307e\u3068\u3081\u3089\u308c\u308b\u3068\u306f\u9650\u3089\u306a\u3044\u3002
\n\u51fa\u6765\u308b\u9650\u308a\u3001\u307e\u3068\u307e\u308b\u3053\u3068\u306b\u3059\u308b\u3002<\/p>\n
2.
\n\u5e33\u7968\u30c6\u30fc\u30d6\u30eb\u306b\u95a2\u3057\u3066\u306f\u3001DELETE \u306e\u3042\u3068\u306b INSERT \u3057\u3066\u3044\u308b\u3002INSERT \u3092\u5358\u72ec\u3067\u547c\u3073\u51fa\u3059\u3068\u9045\u304f\u306a\u308b\u306e\u3067\uff08\u7dcf\u8a084\u4e07\u4ef6\u306b\u306a\u308b\uff09SqlBulkCopy \u3092\u4f7f\u3063\u3066\u4e00\u62ec\u633f\u5165\u3059\u308b\u3002<\/p>\n
3.
\n\u305d\u306e\u524d\u306b DELETE \u3092\u4f55\u5ea6\u3082\u547c\u3073\u51fa\u3057\u3066\u3044\u308b\u304c\u3001\u3053\u308c\u306f\u7121\u99c4\u306a\u306e\u3067\u3001\u8a72\u5f53\u3059\u308b ID \u3092\u307e\u3068\u3081\u308b\u306a\u3069\u3057\u30661\u56de\u3060\u3051\u306e DELETE \u547c\u51fa\u306b\u3059\u308b\u3002<\/p>\n
4.
\n\u5b9f\u306f\u3001\u6240\u3005 DataTable \u3092\u4f7f\u3063\u3066\u3044\u308b\u306e\u3067 VB \u5074\u306e\u51e6\u7406\u304c\u91cd\u305f\u304f\u306a\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u3082\u3042\u308b\u3002\u3053\u306e\u3042\u305f\u308a\u306f\u3001\u5b9f\u6e2c\u3057\u305f\u5f8c\u306b\u3001\u3069\u3061\u3089\u306e\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306b\u91cd\u304d\u3092\u304a\u304f\u306e\u304b\uff1f\u3042\u308b\u306f\u3001\u30a2\u30af\u30bb\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306b\u3088\u3063\u3066\u3001\u3069\u306e\u304f\u3089\u3044\u306e\u52b9\u679c\u304c\u898b\u8fbc\u3081\u308b\u306e\u304b\u3001\u3092\u3042\u3089\u304b\u3058\u3081\u8003\u5bdf\u3057\u3066\u304a\u304f\u3002<\/p>\n
\u25a0\u5b9f\u9a13\u7528\u30c6\u30fc\u30d6\u30eb<\/p>\n
\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u6848\u4ef6\u30c6\u30fc\u30d6\u30eb
\n\u3000\u89aa\u5b50\u306e\u6848\u4ef6\u304c\u3042\u308b\u306e\u3067\u3001\u89aa\u6848\u4ef6\uff08parent_id\uff09\u304c\u81ea\u5206\u81ea\u8eab\u3092\u793a\u3059\u3002
\n\u3000\uff08\u3053\u308c\u304c\u4eca\u56de\u306e SQL \u3092\u8907\u96d1\u306b\u3057\u3066\u3044\u308b\u539f\u56e0\u3067\u3082\u3042\u308b\u306e\u3067\u3001\u5b9f\u9a13\u30c6\u30fc\u30d6\u30eb\u306b\u3044\u308c\u3066\u304a\u304f\uff09<\/p>\n
\r\nCREATE TABLE [dbo].[t_anken](\r\n\t[id] [int] NOT NULL,\r\n\t[name] [varchar](50) NOT NULL,\r\n\t[parent_id] [int] NULL,\r\n\t[userid] [varchar](10) NOT NULL,\r\n\t[updatedate] [datetime] NOT NULL\r\n) ON [PRIMARY]\r\n<\/pre>\n
\u51fa\u529b\u7528\u306e\u5e33\u7968\u30c6\u30fc\u30d6\u30eb<\/p>\n
\r\nCREATE TABLE [dbo].[t_report](\r\n\t[id] [int] NOT NULL,\r\n\t[name] [varchar](50) NOT NULL,\r\n\t[data] [varchar](500) NOT NULL,\r\n\t[userid] [varchar](10) NOT NULL,\r\n\t[updatedate] [datetime] NOT NULL\r\n) ON [PRIMARY]\r\n<\/pre>\n
\u25a0\u30c7\u30fc\u30bf\u633f\u5165\u7528\u30b3\u30fc\u30c9<\/p>\n
20\u4e07\u4ef6\u306e\u30c7\u30fc\u30bf\u633f\u5165\u306f10\u79d2\u5f31\u3050\u3089\u3044\u3067\u7d42\u308f\u308a\u307e\u3059\u3002<\/p>\n
\r\nprivate string toMD5(string s)\r\n{\r\n\t\/\/\u6587\u5b57\u5217\u3092byte\u578b\u914d\u5217\u306b\u5909\u63db\u3059\u308b\r\n\tbyte[] data = System.Text.Encoding.UTF8.GetBytes(s);\r\n\r\n\t\/\/MD5CryptoServiceProvider\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\r\n\tSystem.Security.Cryptography.MD5CryptoServiceProvider md5 =\r\n\t\tnew System.Security.Cryptography.MD5CryptoServiceProvider();\r\n\t\/\/\u307e\u305f\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u3082\u3067\u304d\u308b\r\n\t\/\/System.Security.Cryptography.MD5 md5 =\r\n\t\/\/    System.Security.Cryptography.MD5.Create();\r\n\r\n\t\/\/\u30cf\u30c3\u30b7\u30e5\u5024\u3092\u8a08\u7b97\u3059\u308b\r\n\tbyte[] bs = md5.ComputeHash(data);\r\n\r\n\t\/\/byte\u578b\u914d\u5217\u309216\u9032\u6570\u306e\u6587\u5b57\u5217\u306b\u5909\u63db\r\n\tSystem.Text.StringBuilder result = new System.Text.StringBuilder();\r\n\treturn BitConverter.ToString(bs).ToLower().Replace(&quot;-&quot;, &quot;&quot;);\r\n}\r\n\r\n\/\/ \u63a5\u7d9a\u6587\u5b57\u5217\r\nconst string CNSTR =\r\n\t@&quot;Data Source=.\\sqlexpress;Initial Catalog=stress;Integrated Security=True;Pooling=False&quot;;\r\nconst int ANKENMAX = 200000;\r\n\r\nprivate void button1_Click(object sender, EventArgs e)\r\n{\r\n\tSqlConnection cn = new SqlConnection(CNSTR);\r\n\r\n\t\/\/ \u30c6\u30fc\u30d6\u30eb\u5185\u5bb9\u3092\u524a\u9664\r\n\tSqlCommand cmd = new SqlCommand();\r\n\tcmd.CommandText = \r\n\t\t&quot;DELETE FROM t_anken \\n&quot; + \r\n\t\t&quot;DELETE FROM t_report&quot;;\r\n\tcmd.Connection = cn;\r\n\tcn.Open();\r\n\tcmd.ExecuteNonQuery();\r\n\tcn.Close();\r\n\r\n\t\/\/ \u30c7\u30fc\u30bf\u4f5c\u6210\r\n\tSqlDataAdapter da = new SqlDataAdapter(&quot;SELECT * FROM t_anken WHERE 1 = 0&quot;, cn);\r\n\tDataTable dt = new DataTable();\r\n\tda.Fill(dt);\r\n\tfor (int i = 0; i < ANKENMAX; i++)\r\n\t{\r\n\t\tDataRow row = dt.NewRow();\r\n\t\trow[&quot;id&quot;] = i;\r\n\t\trow[&quot;name&quot;] = toMD5(i.ToString() + DateTime.Now.ToString());\r\n\t\trow[&quot;parent_id&quot;] = DBNull.Value;\r\n\t\trow[&quot;userid&quot;] = &quot;masuda&quot;;\r\n\t\trow[&quot;updatedate&quot;] = DateTime.Now;\r\n\t\tdt.Rows.Add(row);\r\n\t}\r\n\tSqlBulkCopy bc = new SqlBulkCopy(cn);\r\n\tbc.DestinationTableName = &quot;t_anken&quot;;\r\n\tcn.Open();\r\n\tbc.WriteToServer(dt);\r\n\tcn.Close();\r\n\tbc.Close();\r\n\r\n\tMessageBox.Show(string.Format(&quot;t_anken \u306b {0} \u4ef6\u30c7\u30fc\u30bf\u633f\u5165\u3057\u307e\u3057\u305f&quot;, ANKENMAX));\r\n}\r\n<\/pre>\n
\u7d9a\u304d\u306f\u660e\u65e5\u4ee5\u964d\u3067<\/p>\n","protected":false},"excerpt":{"rendered":"
2000\u4ef6\u306e\u30c7\u30fc\u30bf\u767b\u9332\u30672\u6642\u9593\u7a0b\u639b\u304b\u3063\u3066\u3044\u308b\u51e6\u7406\u3092\u300110\u5206\u7a0b\u5ea6\u306b\u77ed\u7e2e\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb…\u304c\u3067\u304d\u305f\u3089\u3044\u3044\u306a\u3041\u3002\u3063\u3066\u306e\u3092\u3001\u8003\u5bdf\u3082\u4ea4\u3048\u3066\u7d39\u4ecb\u3057\u307e\u3059\u3002 \u25a0\u64ec\u4f3c\u30b3\u30fc\u30c9 \u30fb20\u56de\u307b\u3069\u306e SELECT \u6587\u304c\u547c\u3073\u51fa\u3055\u308c\u3066\u3044\u308b(\u3089 … \u7d9a\u304d\u3092\u8aad\u3080 →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3,23],"tags":[],"class_list":["post-2423","post","type-post","status-publish","format-standard","hentry","category-dev","category-csharp"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/2423","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/comments?post=2423"}],"version-history":[{"count":2,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/2423\/revisions"}],"predecessor-version":[{"id":2779,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/2423\/revisions\/2779"}],"wp:attachment":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/media?parent=2423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/categories?post=2423"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/tags?post=2423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}