{"id":1243,"date":"2009-02-03T19:04:33","date_gmt":"2009-02-03T19:04:33","guid":{"rendered":"http:\/\/osmeusapontamentos.com\/?p=1243"},"modified":"2009-02-03T19:04:33","modified_gmt":"2009-02-03T19:04:33","slug":"criar-instrucao-sql-de-update-usando-smo","status":"publish","type":"post","link":"https:\/\/osmeusapontamentos.com\/index.php\/2009\/02\/03\/criar-instrucao-sql-de-update-usando-smo\/","title":{"rendered":"Criar Instru\u00e7\u00e3o SQL de Update usando SMO"},"content":{"rendered":"<p><strong>Objectivo<\/strong>: criar a partir de uma instru\u00e7\u00e3o SQL parametrizada para a actualiza\u00e7\u00e3o de dados numa tabela.<br \/>\n<strong>Ferramentas<\/strong>: <a href=\"http:\/\/msdn.microsoft.com\/en-us\/library\/ms162169.aspx\">SQL Server Management Objects (SMO)<\/a><br \/>\n<strong>Principais objectos e propriedades<\/strong>: <a href=\"http:\/\/msdn.microsoft.com\/en-us\/library\/microsoft.sqlserver.management.smo.table_members.aspx\">Table<\/a>, Table.Columns, <a href=\"http:\/\/msdn.microsoft.com\/en-us\/library\/microsoft.sqlserver.management.smo.column_members.aspx\">Column<\/a>, Column.InPrimaryKey<br \/>\n<strong> Notas:<\/strong><\/p>\n<ul>\n<li> chave prim\u00e1ria n\u00e3o composta<\/li>\n<li> mesmo que chave prim\u00e1ria n\u00e3o seja um valor automatico (por exemplo ter a propriedade identity) ela nunca mais \u00e9 actualizada<\/li>\n<li> a tabela inclui sempre uma coluna do tipo <a href=\"http:\/\/msdn.microsoft.com\/en-us\/library\/ms182776.aspx\">Timestamp<\/a> que deve ser devolvido e que se chama lastUpdated<\/li>\n<li> a actualiza\u00e7\u00e3o s\u00f3 pode ocorrer se tiver o \u00faltimo timestamp<\/li>\n<li> deve ser devolvido o n\u00famero de linhas afectadas pela opera\u00e7\u00e3o de Update<\/li>\n<li> as colunas CreatedOn, CreatedBy, lastUpdatedOn, lastUpdatedBy existem sempre<\/li>\n<li> a fun\u00e7\u00e3o considera a existencia de um array chamado readOnly com uma lista de campos que n\u00e3o devem ser inclu\u00eddos<\/li>\n<\/ul>\n<p><strong>Exemplo do resultado pretendido<\/strong><\/p>\n<div style=\"overflow:scroll\">\n<pre lang=\"vbnet\">\nDim sql As String = \"UPDATE {0}TM_Parametros SET description = @Description, scope = @Scope, sorting = @Sorting, visible = @Visible, lastUpdatedOn = @LastUpdatedOn, lastUpdatedBy = @LastUpdatedBy WHERE id = @Id AND lastUpdated = @lastUpdated\" & ControlChars.CrLf & _\n                    \"SELECT @updatedRows = @@ROWCOUNT;SELECT @lastUpdated = lastUpdated FROM {0}TM_Parametros WHERE id = @Id ;\"\n<\/pre>\n<\/div>\n<p>&nbsp;<\/p>\n<p><strong>C\u00f3digo<\/strong><\/p>\n<div style=\"overflow:scroll\">\n<pre lang=\"csharp\">\nStringBuilder sqlUpdate = new StringBuilder(50);\nsqlUpdate.AppendFormat(\"UPDATE {{0}}{0} SET \", table.Name);\nforeach(Column c in table.Columns)\n{\n\tif (!c.InPrimaryKey &&\n\t\t!readOnly.Contains(c.Name) )\n\t\tsqlUpdate.AppendFormat(\"{0} = @{1}, \", LowerCaseFirstCharacter(c.Name), UpperCaseFirstCharacter(c.Name));\n}\nsqlUpdate.Append(\"lastUpdatedOn = @LastUpdatedOn, lastUpdatedBy = @LastUpdatedBy WHERE \");\nforeach(Column c in table.Columns)\n{\n\tif (c.InPrimaryKey)\n\t\tsqlUpdate.AppendFormat(\"{0} = @{1} AND \", LowerCaseFirstCharacter(c.Name), UpperCaseFirstCharacter(c.Name));\n}\nsqlUpdate.Append(\"lastUpdated = @lastUpdated\");\n\nStringBuilder sqlSelect = new StringBuilder(50);\nbool primeiro = true;\nforeach(Column c in table.Columns)\n{\n\tif (c.InPrimaryKey)\n\t{\n\t\tif (primeiro) primeiro = false; else sqlSelect.Append(\" AND \");\n\t\tsqlSelect.AppendFormat(\"{0} = @{1} \", LowerCaseFirstCharacter(c.Name), UpperCaseFirstCharacter(c.Name));\n\t}\n}\nString sql = String.Format(\"SELECT @updatedRows = @@ROWCOUNT;SELECT @lastUpdated = lastUpdated FROM {{0}}{0} WHERE {1};\", table.Name, sqlSelect.ToString());\n<\/pre>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Objectivo: criar a partir de uma instru\u00e7\u00e3o SQL parametrizada para a actualiza\u00e7\u00e3o de dados numa tabela. Ferramentas: SQL Server Management Objects (SMO) Principais objectos e propriedades: Table, Table.Columns, Column, Column.InPrimaryKey Notas: chave prim\u00e1ria n\u00e3o composta mesmo que chave prim\u00e1ria n\u00e3o seja um valor automatico (por exemplo ter a propriedade identity) ela nunca mais \u00e9 actualizada [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[536,601,610],"class_list":["post-1243","post","type-post","status-publish","format-standard","hentry","category-ler-ver-ouvir-passear","tag-programacao","tag-smo","tag-sql"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Criar Instru\u00e7\u00e3o SQL de Update usando SMO - Os Meus Apontamentos<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/osmeusapontamentos.com\/index.php\/2009\/02\/03\/criar-instrucao-sql-de-update-usando-smo\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Criar Instru\u00e7\u00e3o SQL de Update usando SMO - Os Meus Apontamentos\" \/>\n<meta property=\"og:description\" content=\"Objectivo: criar a partir de uma instru\u00e7\u00e3o SQL parametrizada para a actualiza\u00e7\u00e3o de dados numa tabela. Ferramentas: SQL Server Management Objects (SMO) Principais objectos e propriedades: Table, Table.Columns, Column, Column.InPrimaryKey Notas: chave prim\u00e1ria n\u00e3o composta mesmo que chave prim\u00e1ria n\u00e3o seja um valor automatico (por exemplo ter a propriedade identity) ela nunca mais \u00e9 actualizada [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/osmeusapontamentos.com\/index.php\/2009\/02\/03\/criar-instrucao-sql-de-update-usando-smo\/\" \/>\n<meta property=\"og:site_name\" content=\"Os Meus Apontamentos\" \/>\n<meta property=\"article:published_time\" content=\"2009-02-03T19:04:33+00:00\" \/>\n<meta name=\"author\" content=\"Vitor Silva\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@vitorsilva\" \/>\n<meta name=\"twitter:site\" content=\"@vitorsilva\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Vitor Silva\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/osmeusapontamentos.com\\\/index.php\\\/2009\\\/02\\\/03\\\/criar-instrucao-sql-de-update-usando-smo\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/osmeusapontamentos.com\\\/index.php\\\/2009\\\/02\\\/03\\\/criar-instrucao-sql-de-update-usando-smo\\\/\"},\"author\":{\"name\":\"Vitor Silva\",\"@id\":\"https:\\\/\\\/osmeusapontamentos.com\\\/#\\\/schema\\\/person\\\/d508df9c3ffc8b4e64a18dbf0ba18dd8\"},\"headline\":\"Criar Instru\u00e7\u00e3o SQL de Update usando SMO\",\"datePublished\":\"2009-02-03T19:04:33+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/osmeusapontamentos.com\\\/index.php\\\/2009\\\/02\\\/03\\\/criar-instrucao-sql-de-update-usando-smo\\\/\"},\"wordCount\":152,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/osmeusapontamentos.com\\\/#\\\/schema\\\/person\\\/d508df9c3ffc8b4e64a18dbf0ba18dd8\"},\"keywords\":[\"programa\u00e7\u00e3o\",\"smo\",\"sql\"],\"articleSection\":[\"Ler\\\/ Ver\\\/ Ouvir\\\/ Passear\"],\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/osmeusapontamentos.com\\\/index.php\\\/2009\\\/02\\\/03\\\/criar-instrucao-sql-de-update-usando-smo\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/osmeusapontamentos.com\\\/index.php\\\/2009\\\/02\\\/03\\\/criar-instrucao-sql-de-update-usando-smo\\\/\",\"url\":\"https:\\\/\\\/osmeusapontamentos.com\\\/index.php\\\/2009\\\/02\\\/03\\\/criar-instrucao-sql-de-update-usando-smo\\\/\",\"name\":\"Criar Instru\u00e7\u00e3o SQL de Update usando SMO - 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