java - 列名称中包含 "é"的 iSeries JDBC Sql 语句抛出 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 IBM Toolbox JDBC 驱动程序连接到 iSeries 会产生此异常:

 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)
...

这是 jdbc 驱动程序设置不正确的问题，还是对可以使用的字符存在一些内置限制(我在哪里可以找到这个？我发现 IBM doco 极其复杂......)。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