{"id":76,"date":"2010-09-29T10:09:57","date_gmt":"2010-09-29T10:09:57","guid":{"rendered":"http:\/\/enjoyasp.net\/?p=76"},"modified":"2010-10-02T00:48:20","modified_gmt":"2010-10-02T00:48:20","slug":"ado-net-%e6%80%bb%e8%bf%b0","status":"publish","type":"post","link":"https:\/\/enjoyasp.net\/index.php\/2010\/09\/29\/ado-net-%e6%80%bb%e8%bf%b0\/","title":{"rendered":"ADO.NET \u603b\u8ff0"},"content":{"rendered":"<pre lang=\"csharp\">\r\n1\uff0c<a href=\"http:\/\/ado.net\">ado.net<\/a>\u662f<a href=\"http:\/\/xn--3ds31r4w5b.NET\">\u5fae\u8f6f\u5728.NET<\/a>\u4e2d\u521b\u5efa\u5206\u5e03\u5f0f\u548c\u6570\u636e\u5171\u4eab\u5e94\u7528\u7a0b\u5e8f\u7684\u5f00\u53d1\u63a5\u53e3\uff0c\u5b83\u5c31\u662f\u4e00\u7ec4\u5904\u7406\u6570\u636e\u7684\u7c7b\u3002\r\n\r\n 2\uff0c \u8fde\u63a5\u6570\u636e\u5e93\u7684\u4e24\u79cd\u72b6\u6001 -- \u6709\u8fde\u63a5\uff0c\u65e0\u8fde\u63a5\u3002\r\n<span>    <\/span>\uff081\uff09\u6709\u8fde\u63a5\uff1a\u7528\u6237\u5f97\u5230\u7684\u6570\u636e\u59cb\u7ec8\u4e0e\u6570\u636e\u6e90\u8fde\u63a5\uff0c\u76f4\u5230\u5e94\u7528\u7a0b\u5e8f\u7ed3\u675f\u3002\u56e0\u6570\u636e\u662f\u5b9e\u65f6\u7684\uff0c\u6545\u53ef\u7528\u8fde\u63a5\u72b6\u6001\u6765\u8bfb\u53d6\u6570\u636e\uff0c\u4ee5\u4fdd\u6301\u6570\u636e\u7684\u6700\u65b0\u3002     \r\n            \u597d\u5904\uff1a\u5f97\u5230\u7684\u6570\u636e\u603b\u662f\u6700\u65b0\u7684\u3002\u540c\u6b65\u95ee\u9898\u6613\u4e8e\u89e3\u51b3\uff0c\u5b9e\u65f6\u6027\u9ad8\r\n            \u7f3a\u70b9\uff1a\u5fc5\u987b\u4fdd\u6301\u6301\u7eed\u7684\u7f51\u7edc\u8fde\u63a5\uff0c\u6269\u5c55\u6027\u5dee\u3002\r\n<span>    <\/span>\uff082\uff09\u65e0\u8fde\u63a5\uff1a\u4ece\u6570\u636e\u6e90\u5f97\u5230\u6570\u636e\u540e\uff0c\u8fd9\u90e8\u5206\u6570\u636e\u5b58\u50a8\u5230\u5185\u5728\u4e2d\uff0c\u53ef\u4ee5\u8fdb\u884c\u6570\u636e\u7684\u7f16\u8f91\uff0c\u4e0e\u66f4\u6539\u3002\r\n            \u597d\u5904\uff1a\u53ef\u4ee5\u5728\u4efb\u4f55\u65f6\u95f4\u64cd\u4f5c\uff0c\u4e0d\u72ec\u5360\u8fde\u63a5\u3002\r\n            \u7f3a\u70b9\uff1a\u6570\u636e\u4e0d\u662f\u5b9e\u65f6\u7684\uff0c\u8981\u89e3\u51b3\u540c\u6b65\u95ee\u9898\u3002\r\n\r\n 3\uff0c\u6709\u8fde\u63a5\u7684\u64cd\u4f5c\uff1a\u4e3b\u8981\u7528\u6765\u6570\u636e\u7684\u8bfb\u53d6\u3002\u8fde\u63a5\u6570\u636e\u6b65\u9aa4\uff1a\r\n       \uff081\uff09\u58f0\u660eSqlConnecton\u5bf9\u8c61\uff0c\u5e76\u6307\u5b9a\u8fde\u63a5\u5b57\u7b26\u4e32\u5c5e\u6027\r\n       \uff082\uff09\u58f0\u660eSqlCommand\u5bf9\u8c61\uff0c\u6307\u5b9asql\u547d\u4ee4\u53caSqlConnection\r\n       \uff083\uff09SqlCommnad\u6267\u884c\u65b9\u6cd5\uff0c\u8fd4\u56de\u6570\u636e\u96c6\r\n       \uff084\uff09\u5173\u95ed\u6570\u636e\u96c6\uff0c\u5173\u95edConnection\r\n\r\n        SqlConnection conn = new SqlConnection();\r\n        conn.ConnectionString = \"Data Source=192.168.16.55;Initial Catalog=BRM;persist security info=False;user id=BRM;password=BRM2009;min pool size=1;max pool size=100;\" ;\r\n        conn.Open();\r\n       <strong> SqlCommand command = new SqlCommand();\r\n        command.Connection = conn;\r\n        command.CommandText = \"SELECT * FROM bdOrder\";<\/strong>\r\n      <strong>  SqlDataReader  dr = command.<span style=\"color: #ff0000;\">ExecuteReader<\/span>();<\/strong>\r\n        GridView1.DataSource = dr;\r\n        GridView1.DataBind();\r\n        dr.Close();\r\n       <span style=\"color: #ff0000;\"> conn.Close()<\/span>;  \/\/\u6ce8\u82e5\u5728GridView\u83b7\u53d6\u6570\u636e\u4e4b\u524dClose\u5173\u95ed\uff0c\u5219\u5c06\u6536\u4e0d\u5230\u6570\u636e\u3002\u4f46\u5728\u65e0\u8fde\u63a5\u8fdb\u53ef\u5728\u4e4b\u524d\u5173\u95ed\uff0c\u56e0\u4e3a\u6570\u636e\u5df2\u5b58\u5165\u5728\u5185\u5b58\u4e2d\u3002\r\n\r\n       \u6ce8\uff1a\u5229\u7528SqlConnection, SqlCommand, SqlDataReader\u9ed8\u8ba4\u662f\u652f\u6301SqlServer\u7684\uff0c\u82e5\u60f3\u652f\u6301MySql,\u9879\u76ee\u4e2d\u8981\u5f15\u5165\u5177\u4f53\u7684dll\u6587\u4ef6 \u5982\u5f15\u5165MySql.Data.dll, \u5728\u7a0b\u5e8f\u4e2dusing MySql.Data.MySqlClient;\u5229\u7528MySqlConnection,MySqlCommand,MySqlDataReader\u5373\u53ef\u3002\r\n<strong>SqlCommand \u5e38\u7528\u65b9\u6cd5\uff1a\r\n<\/strong>    \uff081\uff09\u66f4\u65b0\u5220\u9664\u64cd\u4f5c\uff1aExecuteNonQuery \u5bf9\u8fde\u63a5\u6267\u884c Transact-SQL \u8bed\u53e5\u5e76\u8fd4\u56de\u53d7\u5f71\u54cd\u7684\u884c\u6570, int\u7c7b\u578b<span>    <\/span><span>        <\/span>  \u8fd4\u56de\u6570\u636e\u96c6\u64cd\u4f5c: ExecuteReader \u5df2\u91cd\u8f7d\u3002 \u5c06 CommandText \u53d1\u9001\u5230 Connection \u5e76\u751f\u6210\u4e00\u4e2a SqlDataReader\u3002 \u8fd4\u56de\u4e00\u4e2a\u6570\u636e\u64cd\u4f5c\uff1a ExecuteScalar \u6267\u884c\u67e5\u8be2\uff0c\u5e76\u8fd4\u56de\u67e5\u8be2\u6240\u8fd4\u56de\u7684\u7ed3\u679c\u96c6\u4e2d\u7b2c\u4e00\u884c\u7684\u7b2c\u4e00\u5217\u3002\u5ffd\u7565\u5176\u4ed6\u5217\u6216\u884c\u3002 <strong>\r\n<\/strong>         \u8fd4\u56de\u4e00\u4e2aXML: ExecuteXmlReader \u5c06 CommandText \u53d1\u9001\u5230 Connection \u5e76\u751f\u6210\u4e00\u4e2a XmlReader \u5bf9\u8c61\u3002 <strong>\r\n        \r\n  <\/strong>\uff082\uff09 \u4f20\u53c2\r\n             1\uff09\uff0c\u76f4\u63a5\u5728CommandText\u5199\u53c2\u6570\uff1b\u5982\uff1acommand.CommandText = \"SELECT * FROM bdOrder WHERE id&gt;\" + id;2)\uff0c\u5229\u7528SqlParameter\u4f20\u53c2\uff0c\u9632\u6b62Sql\u6ce8\u5165\r\n             command.CommandText = \"SELECT * FROM mdCustomerType WHERE ORDERBY <span style=\"color: #ff0000;\">orderby<\/span>\";\r\n     <span>    <\/span><span>    <\/span><span>    <\/span>         SqlParameter sp = new SqlParameter( \"<span style=\"color: #ff0000;\">@orderby<\/span>\" ,8);  \r\n      <span>    <\/span><span>    <\/span><span>    <\/span><span>    <\/span><span>    <\/span>command.Parameters.Add(sp);\r\n        \u6ce8\uff1a\u4e0d\u540c\u7684\u6570\u636e\u5e93\u7528\u7684\u7b26\u53f7\u662f\u4e0d\u540c\u7684\uff0cSqlServer\u7528 \u201c<span style=\"color: #ff0000;\">@<\/span>\u201d, \u800cMySql \u5219\u7528 \u201c<span style=\"color: #ff0000;\">?<\/span>\u201d\r\n\r\n<strong> <\/strong>\r\n\r\n<strong>4\uff0c \u65e0\u8fde\u63a5\u7684\u64cd\u4f5c\uff0c \u533a\u522b\u5728\u4e8e\u6267\u884c\u6570\u636e\u64cd\u4f5c\u65f6\u7528\u7684\u662fSqlDataAdapter\uff0c\u53ef\u5229\u7528SqlCommand\u6784\u9020Sql\u8bed\u53e5\uff0c\u5e76\u4f20\u53c2\u3002\u6700\u540e\u662fSqlDataAdapter\u6765\u6267\u884c \u8fd4\u56de\u7684\u7ed3\u679c\u7528Fill\u65b9\u6cd5\u586b\u5145DataSet\u6216DataTable\r\n        \uff081\uff09string ConnectionString = \"Data Source=192.168.16.55;Initial Catalog=BRM;persist security info=False;user id=BRM;password=BRM2009;min pool size=1;max pool size=100;\";\r\n        SqlConnection conn = new SqlConnection();\r\n        conn.ConnectionString = ConnectionString;\r\n        conn.Open();\r\n        SqlDataAdapter sda = new SqlDataAdapter(\"SELECT * FROM bmdCustomer\",conn);\r\n        DataSet ds = new DataSet();\r\n        sda.Fill( ds );\r\n        conn.Close();             \/\/conn\u53ef\u63d0\u524d\u5173\u95ed\r\n        GridView1.DataSource = NoConnection(conn);\r\n        GridView1.DataBind();\r\n\/\/\u64cd\u4f5c\u4e5f\u53ef\u7528\uff1a \r\n       SqlDataAdapter sda = new SqlDataAdapter();\r\n        SqlCommand command = new SqlCommand();\r\n        command.Connection = conn;\r\n        command.CommandText = \"SELECT * FROM mdCustomerType WHERE ORDERBY &gt;@orderby\";\r\n        SqlParameter sp = new SqlParameter(\"@orderby\", 10);\r\n        command.Parameters.Add(sp);\r\n        <span style=\"color: #ff0000;\">sda.SelectCommand = command;<\/span>   \/\/\u8fd9\u6837\u5c31\u53ef\u4f20\u53c2\u3002\r\n       \u5176\u5b9eSqlDataAdapter\u5c31\u662fSqlCommand\u7684\u9002\u914d\u5668\uff0c\u4e3b\u8981\u5185\u5bb9\u7531SqlCommand\u5b8c\u6210\u6784\u5efa\uff0c\u5b83\u53ea\u662f\u8d1f\u8d23\u6267\u884c\u3002<\/strong>\r\n\r\n     \uff082\uff09<strong>SqlDataAdapter <\/strong>\u7c7b\u4f3c\u4e8eSqlCommand \u7684Exec\u65b9\u6cd5\r\n               \u67e5\u8be2\uff1a  sda.SelectCommand;\r\n               \u63d2\u5165\uff1a  sda.InsertCommand;\r\n               \u66f4\u65b0\uff1a  sda.UpdateCommand;\r\n               \u5220\u9664\uff1a  sda.DeleteCommand;\r\n\r\n       \r\n5\uff0c\u6267\u884c\u5b58\u50a8\u8fc7\u7a0b\r\n      \u6307\u5b9aSqlCommand\u7684CommandType, CommandText\u5373\u53ef\r\n        SqlCommand cmd = conn.CreateCommand();\r\n        cmd.CommandType = CommandType.StoredProcedure;   \/\/\u9ed8\u8ba4\u6267\u884c\u7684\u662fSql\u8bed\u53e5\r\n        cmd.CommandText = \"bmdCustomer_sel\";                      \/\/\u5b58\u50a8\u8fc7\u7a0b\u540d\u79f0\uff0c \u9ed8\u8ba4\u662fSql\u8bed\u53e5\r\n        SqlParameter[] storedParameters = {\r\n                                          new SqlParameter( \"@TranType\", \"ID\" ),\r\n                                          new SqlParameter( \"@ID\", \"277\" )\r\n                                          };\r\n        foreach (SqlParameter sp in storedParameters) {\r\n            cmd.Parameters.Add( sp );\r\n        }\r\n\r\n        SqlDataReader dr = cmd.ExecuteReader();\r\n\r\n\u6ce8\uff1aCommandType\u6307\u5b9a\u7c7b\u578b\uff1a\uff081\uff09Text :\u9ed8\u8ba4\uff0cCommandText\u4e3aSql\u547d\u4ee4\u3002\r\n                                            \uff082\uff09TableDirect CommandText\u4e3a\u8868\u7684\u540d\u79f0\u3002 \uff083\uff09StoredProcedure CommandText\u4e3a\u5b58\u50a8\u8fc7\u7a0b\u7684\u540d\u79f0\u3002\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>1\uff0cado.net\u662f\u5fae\u8f6f\u5728.NET\u4e2d\u521b\u5efa\u5206\u5e03\u5f0f\u548c\u6570\u636e\u5171\u4eab\u5e94\u7528\u7a0b\u5e8f\u7684\u5f00\u53d1\u63a5\u53e3\uff0c\u5b83\u5c31\u662f\u4e00\u7ec4\u5904\u7406\u6570\u636e\u7684\u7c7b\u3002 2\uff0c \u8fde [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-76","post","type-post","status-publish","format-standard","hentry","category-aspdotnet"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts\/76","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/comments?post=76"}],"version-history":[{"count":0,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts\/76\/revisions"}],"wp:attachment":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/media?parent=76"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/categories?post=76"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/tags?post=76"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}