SQL Server的NamedParameterJdbcTemplate:在'@P0'；

我有以下代码，它对SQLServerDB运行查询。我读过这些链接

但我仍然不明白我在哪里/为什么会得到“@P0”问题。我已将顶部参数括在括号中

private String DEP_AMC_QUERY = "SELECT TOP(1) ((fund_amc-reinsurance_premium)/1000) 

作为副amc“+ “来自Staging.dbo.：table”+ “其中，内部资金\代码\标识符=：资金”+ “AND load_id=：load_id；“

控制台和异常消息为

13:11:12,871 INFO  [ReinsuredFundAssetProcessor] looking up dep_amc value for AXX in AI_IFL_Policy table.

params = 
{
    table = AI_IFL_Policy java.lang.String
    fund = AXX java.lang.String
    load_id = 4356 java.lang.Long
} 
13:11:12,909 ERROR [AbstractStep] Encountered an error executing the step
org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; bad SQL grammar [select top(1) ((fund_amc-reinsurance_premium)/1000) as dep_amc from Hedging_Staging.dbo.? WHERE internal_fund_code_identifier=? AND load_id=?;]; nested exception is com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax near '@P0'.
    at org.springframework.jdbc.support.SQLStateSQLExceptionTranslator.doTranslate(SQLStateSQLExceptionTranslator.java:98)

---

任何想法？

占位符只允许出现在where子句中，而不允许出现在表名中。因此第一个？（

table

）不会被实际的底层预处理语句替换。我想我必须进行重构以使用未由预处理语句支持的StringBuilder/jdbc查询。不，您可以自己替换

：表

，并将生成的sql传递到

（NamedParameter）JdbcTemplate

。

13:11:12,871 INFO  [ReinsuredFundAssetProcessor] looking up dep_amc value for AXX in AI_IFL_Policy table.

params = 
{
    table = AI_IFL_Policy java.lang.String
    fund = AXX java.lang.String
    load_id = 4356 java.lang.Long
} 
13:11:12,909 ERROR [AbstractStep] Encountered an error executing the step
org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; bad SQL grammar [select top(1) ((fund_amc-reinsurance_premium)/1000) as dep_amc from Hedging_Staging.dbo.? WHERE internal_fund_code_identifier=? AND load_id=?;]; nested exception is com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax near '@P0'.
    at org.springframework.jdbc.support.SQLStateSQLExceptionTranslator.doTranslate(SQLStateSQLExceptionTranslator.java:98)