[英]Parameter number 2 is not an OUT parameter
String sqlString = "{CALL MyStoredProcedure(?,?)}";
CallableStatement sqlStm = connection.prepareCall(sqlString);
sqlStm.setString(1, username);
sqlStm.registerOutParameter(2, Types.DECIMAL, 0); // <---- ERROR
sqlStm.execute();
這是我的錯誤堆棧跟蹤:
java.sql.SQLException: Parameter number 2 is not an OUT parameter
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:982)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:927)
at com.mysql.jdbc.CallableStatement.checkIsOutputParam(CallableStatement.java:690)
at com.mysql.jdbc.CallableStatement.registerOutParameter(CallableStatement.java:1881)
at com.mysql.jdbc.CallableStatement.registerOutParameter(CallableStatement.java:1890)
at com.isb.igt.database.StoredProcedures.preparationCalls(StoredProcedures.java:40)
at com.isb.igt.database.StoredProcedures.main(StoredProcedures.java:236)
程序第一行:
CREATE DEFINER=devel@11.22.33.44程序MyStoredProcedure(IN登錄VARCHAR(255),OUT變量DECIMAL(20,2)
我無法弄清楚如何讓它發揮作用。
謝謝
函數調用應該看起來像{? = call MyStoredProcedure(?)}
{? = call MyStoredProcedure(?)}
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