Question

我有这样的查询

UPDATE FOLLOWUP F SET CUSTOMER=(SELECT NAME FROM CUSTOMERS C WHERE F.CUST_ID=C.ID), PHONE=(SELECT SEARCHKEY FROM CUSTOMERS C WHERE F.CUST_ID=C.ID);

这在我的postgresql中成功运行，但没有在java中运行

和我的java函数

for (final TicketLineInfo l : ticket.getLines())
    if(l.getConsumption()!= 0.0 && l.getMultiply()!=l.getConsumption()) {            
        new PreparedSentence(s
                , "UPDATE FOLLOWUP F SET CUSTOMER=(SELECT NAME FROM CUSTOMERS C WHERE F.CUST_ID=?), PHONE=(SELECT SEARCHKEY FROM CUSTOMERS C WHERE F.CUST_ID=?);"
                , SerializerWriteParams.INSTANCE
                ).exec(new DataParams() { public void writeValues() throws BasicException {
                        setString(1, ticket.getCustomerId());
                        setString(2, ticket.getCustomerId());
                }});
                 }

当我运行这个

我得到这样的错误：

com.openbravo.basic.BasicException: 
org.postgresql.util.PSQLException: ERROR: more than one row returned by a subquery used as an expression

org.postgresql.util.PSQLException: 
ERROR: more than one row returned by a subquery used as an expression

我的问题是我如何将上述查询转换为一个没有子查询的单个查询..这样我就可以避免这个异常并继续我的执行或者是否还有其他支持这个的序列化程序

Answer 1

您的查询中似乎不需要子查询：

update FOLLOWUP as F set
    Name = c.Name,
    Phone = c.SearchKey
from CUSTOMERS as c
where
    F.Cust_ID = C.ID and
    F.Cust_ID = ?

查询内部查询到1查询postgresql

1 个答案: