{"id":144767,"date":"2024-11-01T09:47:29","date_gmt":"2024-11-01T01:47:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/144767\/"},"modified":"2024-11-01T09:47:31","modified_gmt":"2024-11-01T01:47:31","slug":"vb-%e7%a8%8b%e5%ba%8f%e5%93%a1%e5%bf%85%e7%9f%a5%ef%bc%9a%e5%a6%82%e4%bd%95%e8%bc%95%e9%ac%86%e8%aa%bf%e7%94%a8%e6%95%b8%e6%93%9a%e5%ba%ab-vb-%e5%a6%82%e4%bd%95%e8%aa%bf%e7%94%a8%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/144767\/","title":{"rendered":"VB \u7a0b\u5e8f\u54e1\u5fc5\u77e5\uff1a\u5982\u4f55\u8f15\u9b06\u8abf\u7528\u6578\u64da\u5eab (vb \u5982\u4f55\u8abf\u7528\u6578\u64da\u5eab)"},"content":{"rendered":"

VB \u7a0b\u5e8f\u54e1\u5fc5\u77e5\uff1a\u5982\u4f55\u8f15\u9b06\u8abf\u7528\u6578\u64da\u5eab<\/h1>\n

\u5728\u7576\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u5df2\u6210\u70ba\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u5c0d\u65bc VB\uff08Visual Basic\uff09\u7a0b\u5e8f\u54e1\u4f86\u8aaa\uff0c\u5b78\u6703\u5982\u4f55\u8f15\u9b06\u8abf\u7528\u6578\u64da\u5eab\u662f\u63d0\u5347\u958b\u767c\u6548\u7387\u548c\u61c9\u7528\u6027\u80fd\u7684\u95dc\u9375\u3002\u672c\u6587\u5c07\u4ecb\u7d39 VB \u8a9e\u8a00\u5982\u4f55\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u6280\u5de7\u3002<\/p>\n

1. \u7406\u89e3\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n

\u5728 VB \u4e2d\u8abf\u7528\u6578\u64da\u5eab\u7684\u7b2c\u4e00\u6b65\u662f\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u9019\u901a\u5e38\u901a\u904e ADO\uff08ActiveX Data Objects\uff09\u4f86\u5be6\u73fe\u3002ADO \u63d0\u4f9b\u4e86\u4e00\u500b\u7c21\u55ae\u7684\u63a5\u53e3\u4f86\u8a2a\u554f\u5404\u7a2e\u6578\u64da\u6e90\uff0c\u5305\u62ec SQL Server\u3001MySQL \u548c Access \u7b49\u3002<\/p>\n

1.1 \u9023\u63a5\u5b57\u7b26\u4e32<\/h3>\n

\u9023\u63a5\u5b57\u7b26\u4e32\u662f\u7528\u4f86\u63cf\u8ff0\u5982\u4f55\u9023\u63a5\u5230\u6578\u64da\u5eab\u7684\u5b57\u7b26\u4e32\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u9023\u63a5\u5230 SQL Server \u7684\u793a\u4f8b\uff1a<\/p>\n

Dim conn As New ADODB.Connection\nconn.ConnectionString = \"Provider=SQLOLEDB;Data Source=\u4f60\u7684\u4f3a\u670d\u5668\u5730\u5740;Initial Catalog=\u4f60\u7684\u6578\u64da\u5eab\u540d\u7a31;User ID=\u4f60\u7684\u7528\u6236\u540d;Password=\u4f60\u7684\u5bc6\u78bc;\"\nconn.Open<\/code><\/pre>\n
2. \u57f7\u884c SQL \u67e5\u8a62<\/h2>\n
\u4e00\u65e6\u5efa\u7acb\u4e86\u9023\u63a5\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528 SQL \u8a9e\u53e5\u4f86\u67e5\u8a62\u6216\u64cd\u4f5c\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u57f7\u884c\u4e00\u500b\u7c21\u55ae\u7684 SELECT \u67e5\u8a62\u7684\u793a\u4f8b\uff1a<\/p>\n
Dim rs As New ADODB.Recordset\nDim sql As String\nsql = \"SELECT * FROM \u4f60\u7684\u8868\u540d\"\nrs.Open sql, conn<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b Recordset \u5c0d\u8c61\u4f86\u5b58\u5132\u67e5\u8a62\u7d50\u679c\u3002\u7136\u5f8c\uff0c\u6211\u5011\u4f7f\u7528 Open \u65b9\u6cd5\u57f7\u884c SQL \u67e5\u8a62\u4e26\u5c07\u7d50\u679c\u52a0\u8f09\u5230 Recordset \u4e2d\u3002<\/p>\n
2.1 \u8b80\u53d6\u6578\u64da<\/h3>\n
\u8b80\u53d6 Recordset \u4e2d\u7684\u6578\u64da\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u65b9\u5f0f\u5be6\u73fe\uff1a<\/p>\n
Do While Not rs.EOF\n    Debug.Print rs.Fields(\"\u5b57\u6bb5\u540d\").Value\n    rs.MoveNext\nLoop<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u5c07\u904d\u6b77 Recordset \u4e2d\u7684\u6bcf\u4e00\u884c\uff0c\u4e26\u6253\u5370\u51fa\u6307\u5b9a\u5b57\u6bb5\u7684\u503c\u3002<\/p>\n
3. \u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da<\/h2>\n
\u9664\u4e86\u67e5\u8a62\u6578\u64da\uff0cVB \u4e5f\u53ef\u4ee5\u7528\u4f86\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u57f7\u884c\u9019\u4e9b\u64cd\u4f5c\u7684\u793a\u4f8b\uff1a<\/p>\n
3.1 \u63d2\u5165\u6578\u64da<\/h3>\n
Dim insertSql As String\ninsertSql = \"INSERT INTO \u4f60\u7684\u8868\u540d (\u5b57\u6bb51, \u5b57\u6bb52) VALUES ('\u503c1', '\u503c2')\"\nconn.Execute insertSql<\/code><\/pre>\n
3.2 \u66f4\u65b0\u6578\u64da<\/h3>\n
Dim updateSql As String\nupdateSql = \"UPDATE \u4f60\u7684\u8868\u540d SET \u5b57\u6bb51 = '\u65b0\u503c' WHERE \u689d\u4ef6\"\nconn.Execute updateSql<\/code><\/pre>\n
3.3 \u522a\u9664\u6578\u64da<\/h3>\n
Dim deleteSql As String\ndeleteSql = \"DELETE FROM \u4f60\u7684\u8868\u540d WHERE \u689d\u4ef6\"\nconn.Execute deleteSql<\/code><\/pre>\n
4. \u95dc\u9589\u9023\u63a5<\/h2>\n
\u5728\u5b8c\u6210\u6240\u6709\u64cd\u4f5c\u5f8c\uff0c\u8a18\u5f97\u95dc\u9589 Recordset \u548c Connection\uff0c\u4ee5\u91cb\u653e\u8cc7\u6e90\uff1a<\/p>\n
rs.Close\nconn.Close<\/code><\/pre>\n
5. \u932f\u8aa4\u8655\u7406<\/h2>\n
\u5728\u8207\u6578\u64da\u5eab\u4ea4\u4e92\u6642\uff0c\u932f\u8aa4\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u4f7f\u7528 Try-Catch \u7d50\u69cb\u4f86\u6355\u7372\u548c\u8655\u7406\u6f5b\u5728\u7684\u932f\u8aa4\uff1a<\/p>\n
On Error GoTo ErrorHandler\n' \u6578\u64da\u5eab\u64cd\u4f5c\u4ee3\u78bc\nExit Sub\n\nErrorHandler:\n    MsgBox \"\u767c\u751f\u932f\u8aa4: \" & Err.Description<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u638c\u63e1 VB \u8a9e\u8a00\u8abf\u7528\u6578\u64da\u5eab\u7684\u57fa\u672c\u6280\u5de7\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u9ad8\u6548\u5730\u8655\u7406\u6578\u64da\u3002\u7121\u8ad6\u662f\u67e5\u8a62\u3001\u63d2\u5165\u3001\u66f4\u65b0\u9084\u662f\u522a\u9664\u6578\u64da\uff0c\u4e86\u89e3\u5982\u4f55\u4f7f\u7528 ADO \u548c SQL \u8a9e\u53e5\u90fd\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u80fd\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u3002\u5e0c\u671b\u672c\u6587\u80fd\u5e6b\u52a9 VB \u7a0b\u5e8f\u54e1\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e0a\u66f4\u52a0\u5f97\u5fc3\u61c9\u624b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b78\u7fd2VB\u7a0b\u5e8f\u54e1\u5fc5\u77e5\u7684\u6280\u5de7\uff0c\u8f15\u9b06\u8abf\u7528\u6578\u64da\u5eab\uff0c\u63d0\u5347\u958b\u767c\u6548\u7387\uff0c\u638c\u63e1\u6578\u64da\u64cd\u4f5c\u7684\u95dc\u9375\u65b9\u6cd5\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-144767","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/144767","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=144767"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/144767\/revisions"}],"predecessor-version":[{"id":144768,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/144767\/revisions\/144768"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=144767"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=144767"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=144767"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}