插入负数- ORA-01722

Question

我使用jdbcTemplate将一些数据插入到DataBase Oracle中。不幸的是，我得到了这个错误：

java.sql.SQLSyntaxErrorException: ORA-01722: invalid Number

首先，我将字符串转换为double：

Number number = nmFormat.parse(record[8]);
double doubleVLBalance = number.doubleValue();

及之后：

 String sqlSettlementBalance = "INSERT INTO STARR4.TBSETR_SETTLEMENT_BALANCE"+
                "(DT_MOVEMENT,NU_CUSTOMER_REF, NU_MOD_CUSTOMER_REF,"+
                "NU_HIERARCHICAL_NODE, CD_ACQUIRER, CD_PRODUCT,"+
                "CD_BALANCE_TYPE, NU_CUSTOMER, VL_BALANCE, NU_CONTROL)"+
                "VALUES ('" ...,'"+doubleVLBalance+"','"+sb.getNuControl()+"')";

jdbcTemplate.update(sqlSettlementBalance);

字符串record8的值为"-0.34“。有什么解决这个问题的建议吗？

Answer 1

如果你用引号环绕一个数字，它就变成了一个字符串。删除引号。

 String sqlSettlementBalance = "INSERT INTO STARR4.TBSETR_SETTLEMENT_BALANCE"+
            "(DT_MOVEMENT,NU_CUSTOMER_REF, NU_MOD_CUSTOMER_REF,"+
            "NU_HIERARCHICAL_NODE, CD_ACQUIRER, CD_PRODUCT,"+
            "CD_BALANCE_TYPE, NU_CUSTOMER, VL_BALANCE, NU_CONTROL)"+
            "VALUES ('" ...,"+doubleVLBalance+",'"+sb.getNuControl()+"')";

Answer 2

正如前面提到的，你应该删除引号，但我建议不要

jdbcTemplate.update(sqlSettlementBalance);

使用

jdbcTemplate.update(sqlSettlementBalance, Object... args);

例如，如下所示：

 String sqlSettlementBalance = "INSERT INTO STARR4.TBSETR_SETTLEMENT_BALANCE"+
            "(DT_MOVEMENT,NU_CUSTOMER_REF, NU_MOD_CUSTOMER_REF,"+
            "NU_HIERARCHICAL_NODE, CD_ACQUIRER, CD_PRODUCT,"+
            "CD_BALANCE_TYPE, NU_CUSTOMER, VL_BALANCE, NU_CONTROL)"+
            "VALUES ('"...,?,'"+sb.getNuControl()+"')";

jdbcTemplate.update(sqlSettlementBalance, doubleVLBalance);

使用PreparedStatement参见示例this