使用准备好的语句进行选择查询时出现 SQL 异常

Getting SQL Exception while using prepared statement for select query(使用准备好的语句进行选择查询时出现 SQL 异常)

问题描述

StringBuilder sqlQry = new StringBuilder();
sqlQry.append("SELECT LIB, PATH")
.append(" FROM OBJ")
.append(" INNER JOIN SRC ON SRC.MBR = OBJ.LOBJ")
.append(" WHERE  TYPE = '*PGM'")
.append(" AND SRC.PATH LIKE '").append("?").append("%'");

PreparedStatement ps = accssConn.prepareStatement(sqlQry.toString());
ps.setString(1, path);

rs = ps.executeQuery();

大家好，我收到以下异常

Hi All, I am getting following exception

[jcc][10145][10844][3.63.123] Invalid parameter 1: Parameter index is out of range. ERRORCODE=-4461, SQLSTATE=42815

列限制为 255，路径为 = "C:Documents and SettingsxyzDesktopxyzs" 并且在语句中运行良好.那么，它在准备好的语句中抛出异常的原因是什么.

column limit is 255 and path is = "C:Documents and SettingsxyzDesktopxyzs" and it is run fine with statement.So , what is the reason that it is throwing exception in prepared statement.

推荐答案

StringBuilder sqlQry = new StringBuilder();

sqlQry.append("SELECT LIB, PATH")
.append(" FROM OBJ")
.append(" INNER JOIN SRC ON SRC.MBR = OBJ.LOBJ")
.append(" WHERE  TYPE = '*PGM'")
.append(" AND SRC.PATH LIKE ").append("?");

PreparedStatement ps = accssConn.prepareStatement(sqlQry.toString());

ps.setString(1, path + "%");

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