带有“é”的 iSeries JDBC Sql 语句在列名中抛出 java.sql.SQLException: [SQL0104]

Question

我在从 SQL 查询返回的列名中使用字符“é”时遇到问题。 运行此查询

SELECT PRCAT as Categorie, PRYEA as Année, PRDSC as Designation from DEMO.PRODUCT

使用连接到 iSeries 的 IBM Toolbox JDBC 驱动程序

 java.sql.SQLException: [SQL0104] Token é was not valid. Valid tokens: , FROM INTO. Cause . . . . . :   A syntax error was detected at token é.  Token é is not a valid token.  A partial list of valid tokens is , FROM INTO.  This list assumes that the statement is correct up to the token.  The error may be earlier in the statement, but the syntax of the statement appears to be valid up to this point. Recovery  . . . :   Do one or more of the following and try the request again: -- Verify the SQL statement in the area of the token é. Correct the statement.  The error could be a missing comma or quotation mark, it could be a misspelled word, or it could be related to the order of clauses. -- If the error token is <END-OF-STATEMENT>, correct the SQL statement because it does not end with a valid clause.
    at com.ibm.as400.access.JDError.throwSQLException(JDError.java:650)
    at com.ibm.as400.access.JDError.throwSQLException(JDError.java:621)
    at com.ibm.as400.access.AS400JDBCStatement.commonPrepare(AS400JDBCStatement.java:1481)
    at com.ibm.as400.access.AS400JDBCPreparedStatement.<init>(AS400JDBCPreparedStatement.java:185)
    at com.ibm.as400.access.AS400JDBCConnection.prepareStatement(AS400JDBCConnection.java:1903)
    at com.ibm.as400.access.AS400JDBCConnection.prepareStatement(AS400JDBCConnection.java:1726)
...

会产生此异常：这是 jdbc 驱动程序设置不当的问题，还是对可以使用的字符有一些内置限制（我在哪里可以找到这个？我发现IBM doco 简直是迷宫般的......）。我的 jdbc 连接代码如下所示：

Class.forName("com.ibm.as400.access.AS400JDBCDriver").newInstance();
Connection cnnobj=DriverManager.getConnection("jdbc:as400://"+ipAddress+";errors=full;date format=iso;time format=iso;", user, pass);

Answer 1

如果引用别名会发生什么？

SELECT PRCAT as Categorie, PRYEA as "Année", PRDSC as Designation from DEMO.PRODUCT