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我在从结果集中获取想要的结果时出现问题。我不知道如何编码。我的问题是我有一个具有将被提供,但文本框进入4问号的查询,但我不知道如何编写它...代码使用Java搜索SQL数据库(多文本字段搜索)
String descr = desc.getText();
String mat = matl.getText();
String siz = size.getText();
String prod = product.getText();
String sql = "SELECT DISTINCT [Filename], [Path], D.LatestRevisionNo From Documents D INNER JOIN [dbo].[DocumentsInProjects] DP ON DP.DocumentID = D.DocumentID INNER JOIN [dbo].[Projects] P ON DP.ProjectID = P.ProjectID INNER JOIN [dbo].[VariableValue] VV ON VV.DocumentID = D.DocumentID WHERE (VV.variableID = 79 AND VV.ValueText = ?) OR (VV.variableID = 92 AND VV.ValueText = ?) OR (VV.variableID = 328 AND VV.ValueText = ?) OR (VV.variableID = 351 AND VV.ValueText = ?) GROUP BY D.Filename, P.Path, D.LatestRevisionNo HAVING COUNT(DISTINCT ValueText) = 4 AND Filename LIKE '%sld%' order by d.filename";
String host = "jdbc:sqlserver://localhost:1433;databaseName=AWC_Vault;user=SVC_equivaq_cache;password=NMVBm5a5n7zURnfp0K4y;";
con = DriverManager.getConnection(host);
PreparedStatement pstmt = con.prepareStatement(sql);
pstmt.setString(1, descr);
pstmt.setString(2, mat);
pstmt.setString(3, siz);
pstmt.setString(4, prod);
set = pstmt.executeQuery();
如何链接的DESCR,垫子,siz,刺激'?'标记在SQL字符串和我正确使用PreparedStatement?
Php对于这个任务来说好得多 –
你的代码看起来相当正确,它不起作用吗? – Kayaman
单击该按钮时,不会将任何值输出到textarea –