Question

dim Symbol_Val as string

我根据我在symbol_val

中的订单输入股票

例如

Symbol val="stock1,stock2,stock3,stock4,stock5,stock6,stock7,stock8,stock9"

然后我执行查询

"Select Symbol, trade_date , sec_close,volume from stockPrice WHERE symbol in (" & Symbol_Val & ") and NO_OF_RECORDS= (SELECT max(no_of_records) FROM stockPrice_Alert) ORDER BY" & Symbol_Val

当我执行查询时，我没有按照我的偏好获取记录任何人都可以告诉我在SQL中需要执行什么查询？

Answer 1

一种方法是使用public abstract class Base { @Autowired ApplicationContext applicationContext; private Map<String, Base> baseTypes = new HashMap<String, Base>(); @PostConstruct void initTypes() { baseTypes.put("typeA", applicationContext.getBean(TypeA.class)); } public String sayHelloFrom(String type) { BaseType type = baseTypes.get(type); return type.sayHello(); } protected abstract String sayHello(); } @Component("typeA") public class TypeA extends Base { @Override public String sayHello() { return "Hello from A"; } }来查找值。一种简单的方法是：

charindex()

最好考虑分隔符：

Select Symbol, trade_date, sec_close, volume
from stockPrice
where symbol in (" & Symbol_Val & ") and NO_OF_RECORDS = (SELECT max(no_of_records) FROM stockPrice_Alert)
order by charindex(Symbol_Val, val)

带字符串排序的SQL查询

1 个答案: