{"id":9649,"date":"2019-01-19T10:31:14","date_gmt":"2019-01-19T01:31:14","guid":{"rendered":"http:\/\/www.moonmile.net\/blog\/?p=9649"},"modified":"2019-01-19T11:32:16","modified_gmt":"2019-01-19T02:32:16","slug":"linq-%e3%81%ae-insert-%e3%82%92-sqlbulkcopy-%e3%81%ab%e3%81%99%e3%82%8b%e3%81%a8%e3%81%a9%e3%82%8c%e3%81%a0%e3%81%91%e6%97%a9%e3%81%8f%e3%81%aa%e3%82%8b%e3%81%ae%e3%81%8b%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/www.moonmile.net\/blog\/archives\/9649","title":{"rendered":"LINQ \u306e INSERT \u3092 SqlBulkCopy \u306b\u3059\u308b\u3068\u3069\u308c\u3060\u3051\u65e9\u304f\u306a\u308b\u306e\u304b\uff1f"},"content":{"rendered":"

\u6628\u65e5\u66f8\u3044\u305f\u3070\u304b\u308a\u306e\u3001\u3053\u308c\u3060\u3051\u3069\u3001SqlBulkCopy \u3092\u4f7f\u3046\u3068\u3069\u308c\u3060\u3051\u65e9\u304f\u306a\u308b\u306e\u304b\u3092\u518d\u3073\u5b9f\u9a13<\/p>\n

LINQ \u306e INSERT \u304c\u9045\u3044\u3068\u304d\u306f AutoDetectChangesEnabled \u3092 False \u306b\u3059\u308b
\nhttp:\/\/www.moonmile.net\/blog\/archives\/9646<\/a><\/p>\n

\u7d50\u8ad6<\/h2>\n

\u7d50\u8ad6\u304b\u3089\u8a00\u3048\u3070\u3001SqlBulkCopy \u3092\u4f7f\u3046\u307b\u3046\u304c100\u500d\u4f4d\u65e9\u3044\u3067\u3059\u306d\u30021\u4e07\u4ef6\u4f4d\u3060\u30686\u79d2\u304b\u30890.06\u79d2\u3068\u3044\u3046\u8aa4\u5dee\uff1f\u3063\u307d\u3044\u611f\u3058\u3060\u3051\u3069\u3001100\u4e07\u4ef6\u306b\u306a\u308b\u3068LINQ\u306eINSERT\u3067\u306f\u96e3\u3057\u3044\u306e\u3067\u3001SqlBulkCopy \u3092\u76f4\u63a5\u4f7f\u3048\u3068\u3044\u3046\u611f\u3058\u3067\u3059\u3002<\/p>\n

SqlBulkCopy \u306f DataTable \u3092\u53d7\u3051\u53d6\u308b<\/h2>\n

SqlBulkCopy Class (System.Data.SqlClient) | Microsoft Docs
\nhttps:\/\/docs.microsoft.com\/ja-jp\/dotnet\/api\/system.data.sqlclient.sqlbulkcopy?view=netframework-4.7.2<\/a><\/p>\n

SQL Server\u5c02\u7528\u306e SqlBulkCopy \u306a\u8a33\u3067\u3059\u304c\u3001\u5f15\u6570\u306b DataTable \u304b DataRow \u306e\u914d\u5217\u3092\u53d6\u308a\u307e\u3059\u3002\u3044\u308f\u3086\u308bEF\u3058\u3083\u306a\u3044 DataSet\/DataTable \u306e\u3082\u306e\u3092\u4f7f\u308f\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u306e\u3067\u3001EF\u306eDbSet\u304c\u305d\u306e\u307e\u307e\u6e21\u305b\u307e\u305b\u3093\u3002
\n\u9006\u306b\u8a00\u3048\u3070\u3001EF\u306eDbSet\u3092\u6e21\u305b\u308b\u3088\u3046\u306bDataTable\u306b\u5909\u63db\u3057\u3066\u3084\u308c\u3070\u3001LINQ\u3068SqlBulkCopy\u304c\u5171\u5b58\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u4efb\u610f\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u914d\u5217\u3092DataTable\u306b\u5909\u63db\u3059\u308b – Qiita
\nhttps:\/\/qiita.com\/keidrumfreak\/items\/f092b3cacfc2961610b6<\/a><\/p>\n

\u3053\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306b\u3057\u306a\u304c\u3089\u3001\u3068\u3044\u3046\u304b\u305d\u306e\u307e\u307e\u4f7f\u3063\u3066\u3001AsDataTable \u3068\u3044\u3046\u62e1\u5f35\u30e1\u30bd\u30c3\u30c9\u3092\u4f5c\u308a\u307e\u3059\u3002<\/p>\n

\r\npublic static class DataTableExtenstions\r\n{\r\n    public static DataTable AsDataTable<T>(this DbSet<T> src) where T : class\r\n    {\r\n        return DataTableExtenstions.AsDataTable( src.Local );\r\n    }\r\n    public static DataTable AsDataTable<T>(this IEnumerable<T> src) where T : class\r\n    {\r\n        var properties = typeof(T).GetProperties();\r\n        var dest = new DataTable();\r\n        \/\/ \u30c6\u30fc\u30d6\u30eb\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u4f5c\u6210\r\n        foreach (var prop in properties)\r\n        {\r\n            dest.Columns.Add(prop.Name, prop.PropertyType);\r\n        }\r\n        \/\/ \u5024\u306e\u6295\u3052\u8fbc\u307f\r\n        foreach (var item in src)\r\n        {\r\n            var row = dest.NewRow();\r\n            foreach (var prop in properties)\r\n            {\r\n                var itemValue = prop.GetValue(item, new object[] { });\r\n                row[prop.Name] = itemValue;\r\n            }\r\n            dest.Rows.Add(row);\r\n        }\r\n        return dest;\r\n    }\r\n}\r\n<\/pre>\n
EF\u306eDbSet\u306f\u5185\u90e8\u3067Local\u30d7\u30ed\u30d1\u30c6\u30a3\uff08\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u53cd\u6620\u3059\u308b\u524d\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u3063\u3066\u3044\u308b\u6301\u3063\u3066\u304a\u304f\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\uff09\u304c\u3042\u308b\u306e\u3067\u3001\u3053\u308c\u3092\u5229\u7528\u3057\u3066 DataTable \u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/p>\n
\u5b9f\u9a13<\/h2>\n
SqlBulkCopy \u306b\u6e21\u3059\u30c7\u30fc\u30bf\u3092 List \u3067\u7528\u610f\u3057\u3066\u304b\u3089 DataTable \u306b\u5909\u63db\u3059\u308b\u30d1\u30bf\u30fc\u30f3<\/p>\n
\r\nprivate void clickBulk(object sender, RoutedEventArgs e)\r\n{\r\n    var ent = new testdbEntities();\r\n    ent.Database.ExecuteSqlCommand(&quot;delete BulkT&quot;);\r\n    var start = DateTime.Now;\r\n    var lst = new List<BulkT>();\r\n    for (int i = 0; i < 10000; i++)\r\n    {\r\n        var t = new BulkT()\r\n        {\r\n            GUID = Guid.NewGuid().ToString(&quot;N&quot;),\r\n            Created = DateTime.Now,\r\n        };\r\n        lst.Add(t);\r\n    }\r\n    var dt = lst.AsDataTable();\r\n    var cn = ent.Database.Connection as SqlConnection;\r\n    var bc = new SqlBulkCopy(cn);\r\n    bc.DestinationTableName = &quot;BulkT&quot;;\r\n    cn.Open();\r\n    bc.WriteToServer(dt);\r\n    cn.Close();\r\n\r\n    var tend = DateTime.Now;\r\n    var span = (tend - start).TotalSeconds;\r\n    System.Diagnostics.Debug.WriteLine(span.ToString());\r\n}\r\n<\/pre>\n
SqlBulkCopy \u306b\u6e21\u3059\u30c7\u30fc\u30bf\u3092LINQ\u306eAdd\u3067\u8ffd\u52a0\u3057\u3066\u304b\u3089 DataTable \u306b\u5909\u63db\u3059\u308b\u30d1\u30bf\u30fc\u30f3<\/p>\n
\r\nprivate void clickAsDataTable(object sender, RoutedEventArgs e)\r\n{\r\n    var ent = new testdbEntities();\r\n    ent.Configuration.AutoDetectChangesEnabled = false;\r\n    ent.Configuration.ValidateOnSaveEnabled = false;\r\n    ent.Database.ExecuteSqlCommand(&quot;delete BulkT&quot;);\r\n    var start = DateTime.Now;\r\n    for (int i = 0; i < 10000; i++)\r\n    {\r\n        var t = new BulkT()\r\n        {\r\n            GUID = Guid.NewGuid().ToString(&quot;N&quot;),\r\n            Created = DateTime.Now,\r\n        };\r\n        ent.BulkT.Add(t);\r\n    }\r\n    var cn = ent.Database.Connection as SqlConnection;\r\n    var bc = new SqlBulkCopy(cn);\r\n    bc.DestinationTableName = &quot;BulkT&quot;;\r\n    var dt = ent.BulkT.AsDataTable();\r\n    cn.Open();\r\n    bc.WriteToServer(dt);\r\n    cn.Close();\r\n\r\n    var tend = DateTime.Now;\r\n    var span = (tend - start).TotalSeconds;\r\n    System.Diagnostics.Debug.WriteLine(span.ToString());\r\n}\r\n<\/pre>\n
\u7d50\u679c<\/h2>\n
List \u3092\u4f7f\u3063\u3066 DataTable \u306b\u5909\u63db
\n0.0477976
\n0.0400377
\n0.034159<\/p>\n
LINQ\u306eAdd\u3092\u4f7f\u3063\u3066 DataTable \u306b\u5909\u63db
\n1.7919409
\n1.7825315
\n1.7763977<\/p>\n
AutoDetectChangesEnable = false \u306e\u5834\u5408
\n6.311641
\n5.8724151
\n6.0832671<\/p>\n
\u5358\u7d14\u306b\u6bd4\u8f03\u3059\u308b\u3068\u3001AutoDetectChangesEnable \u3092 false \u306b\u3057\u305f\u3060\u3051\u3088\u308a\u3082\u3001SqlBulkCopy \u3092\u4f7f\u3063\u305f\u307b\u3046\u304c6\u500d\u4f4d\u65e9\u304f\u306a\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001EF\u306eDbSet\u3092\u4f7f\u308f\u305a\u306b\u3001List\u3060\u3051\u3092\u4f7f\u3063\u305f\u5834\u5408\u306f\u300125\u500d\u4f4d\u65e9\u304f\u306a\u308b\u3063\u3066\u3053\u3068\u3067\u3059\u306d\u3002\u3069\u3046\u3084\u3089\u3001DbSet\u306b\u5bfe\u3057\u3066Add\/Remove\u3057\u305f\u3068\u304d\u306b DetectChanges() \u7b49\u306e\u30c1\u30a7\u30c3\u30af\u30eb\u30fc\u30c1\u30f3\u304c\u8d70\u308b\u3089\u3057\u304f\u3001\u5358\u7d14\u306a\u5927\u91cf INSERT \u306e\u5834\u5408\u306b\u306f SqlBulkCopy \u3092\u76f4\u63a5\u4f7f\u3063\u3066\u3057\u307e\u305f\u307b\u3046\u304c\u65e9\u3044\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6628\u65e5\u66f8\u3044\u305f\u3070\u304b\u308a\u306e\u3001\u3053\u308c\u3060\u3051\u3069\u3001SqlBulkCopy \u3092\u4f7f\u3046\u3068\u3069\u308c\u3060\u3051\u65e9\u304f\u306a\u308b\u306e\u304b\u3092\u518d\u3073\u5b9f\u9a13 LINQ \u306e INSERT \u304c\u9045\u3044\u3068\u304d\u306f AutoDetectChangesEnabled \u3092 False \u306b\u3059\u308b http … \u7d9a\u304d\u3092\u8aad\u3080 →<\/span><\/a><\/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":""},"categories":[3,23],"tags":[],"class_list":["post-9649","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\/9649","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=9649"}],"version-history":[{"count":2,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/9649\/revisions"}],"predecessor-version":[{"id":9651,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/9649\/revisions\/9651"}],"wp:attachment":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/media?parent=9649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/categories?post=9649"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/tags?post=9649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}