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LIKE语句中包含变量的SQL:列索引无效_Sql_Oracle_Variables_Sql Like_Setstring - Fatal编程技术网
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LIKE语句中包含变量的SQL:列索引无效

sql oracle variables

LIKE语句中包含变量的SQL:列索引无效,sql,oracle,variables,sql-like,setstring,Sql,Oracle,Variables,Sql Like,Setstring,我在用甲骨文 PreparedStatement pstmt = con.prepareStatement("SELECT * FROM BookLoanInfo WHERE title LIKE '%?%' ORDER BY bid"); ResultSet rs; String bookstring = scan.nextLine(); try{ pstmt.clearParameters(); pstmt.setString(1, bookstring); rs =

我在用甲骨文

PreparedStatement pstmt = con.prepareStatement("SELECT * FROM BookLoanInfo WHERE title LIKE '%?%' ORDER BY bid");
ResultSet rs;
String bookstring = scan.nextLine();
try{
    pstmt.clearParameters();
    pstmt.setString(1, bookstring);
    rs = pstmt.executeQuery();
实际的问题似乎与
setString
或我如何键入查询有关

但是，这会产生无效的列索引。

您需要在
setString
语句中指定通配符