H2-使用SQL语句访问链接表时出错&amp；SELECT*FROM NULL T&amp；

我尝试在Java应用程序中创建链接表。

Statement stmtH2 = DBconnect.connH2.createStatement()
String linkedTable = ("CREATE LINKED TABLE tableName('', 'jdbc:mysql://localhost:3306/DBname', 'root', '', 'tableName');";
stmtH2.execute(linkedTable)

String query = "SELECT * FROM tableName WHERE Sex = 'F' ORDER BY Cod";
stmtH2.executeUpdate(query);

在Java中，我收到以下错误：

org.h2.jdbc.JdbcSQLException: Column "COD" not found; SQL statement:

当我尝试在运行SELECT * FROM tableName的本地主机：8082中查看表时，出现错误：

Error accessing linked table with SQL statement "SELECT * FROM null T", cause: "org.h2.jdbc.JdbcSQLException: Class ""com.mysql.jdbc.Driver"" not found [90086-175]"; SQL statement:
SELECT * FROM tableName [90111-175] 90111/90111 (Help)

为什么找不到列"COD"？

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解决方案

您的应用程序丢失com.mysql.jdbc.Driver。将其添加到应用程序的类路径中。