SQL错误:ORA-00936:缺少表达式
Qns:任何名为Jessie Stange的患者的所有治疗的项目描述和治疗日期(ie GivenName为Jessie&Family Name为Stange) 我写的是:SQL错误:ORA-00936:缺少表达式,sql,Sql,Qns:任何名为Jessie Stange的患者的所有治疗的项目描述和治疗日期(ie GivenName为Jessie&Family Name为Stange) 我写的是: SELECT DISTINCT Description, Date as treatmentDate WHERE doothey.Patient P, doothey.Account A, doothey.AccountLine AL, doothey.Item.I AND P.PatientID = A.PatientID
SELECT DISTINCT Description, Date as treatmentDate
WHERE doothey.Patient P, doothey.Account A, doothey.AccountLine AL, doothey.Item.I
AND P.PatientID = A.PatientID
AND A.AccountNo = AL.AccountNo
AND AL.ItemNo = I.ItemNo
AND (p.FamilyName = 'Stange' AND p.GivenName = 'Jessie');
错误:
Error at Command Line:1 Column:30
Error report:
SQL Error: ORA-00936: missing expression
00936. 00000 - "missing expression"
*Cause:
*Action:
缺少的表达式是什么?您的语句正在调用SELECT和WHERE,但没有指定要从中选择的表或记录集
SELECT DISTINCT Description, Date as treatmentDate
FROM (TABLE_NAME or SUBQUERY)<br> --This is missing from your query.
WHERE doothey.Patient P, doothey.Account A, doothey.AccountLine AL, doothey.Item.I
AND P.PatientID = A.PatientID
AND A.AccountNo = AL.AccountNo
AND AL.ItemNo = I.ItemNo
AND (p.FamilyName = 'Stange' AND p.GivenName = 'Jessie');
选择不同的描述,日期作为治疗日期
FROM(TABLE_NAME或SUBQUERY)
——您的查询中缺少此项。
病人P,病人A,病人A,病人A,病人A,病人I
P.PatientID=A.PatientID
A.AccountNo=AL.AccountNo
和AL.ItemNo=I.ItemNo
和(p.FamilyName='Stange'和p.GivenName='Jessie');
1.
选择ename作为名称,
2.作为工资,
第三部门,
4 from(表名称或子查询)
5环境管理计划,环境管理计划2,部门
6在哪里
7 emp.deptno=部门deptno和
8 emp2.deptno=emp.deptno
9*按部门名称订购
from(表名称或子查询)
*
第4行错误:
ORA-00936:缺少表达式“选择ename作为名称,
作为薪水,
部门,部门,
from(表名称或子查询)
环境管理计划,环境管理计划2,部门
哪里
emp.deptno=部门deptno和
emp2.deptno=emp.deptno
按部门名称订购`
你犯了两个错误。我想你把关键词从哪里放错了
SELECT DISTINCT Description, Date as treatmentDate
FROM doothey.Patient P, doothey.Account A, doothey.AccountLine AL, doothey.Item.I --Here you use "." operator to "I" alias
WHERE -- WHERE should be located here.
P.PatientID = A.PatientID
AND A.AccountNo = AL.AccountNo
AND AL.ItemNo = I.ItemNo
AND (p.FamilyName = 'Stange' AND p.GivenName = 'Jessie');
在上面的查询中,当我们尝试合并两个或多个表时,有必要使用联接并指定description和date的别名(即从中获取description和date值的表)
您没有对表使用FROM表达式
SELECT DISTINCT Description, Date as treatmentDate
**FROM <A TABLE>**
WHERE doothey.Patient P, doothey.Account A, doothey.AccountLine AL, doothey.Item.I
AND P.PatientID = A.PatientID
AND A.AccountNo = AL.AccountNo
AND AL.ItemNo = I.ItemNo
AND (p.FamilyName = 'Stange' AND p.GivenName = 'Jessie');
选择不同的描述,日期作为治疗日期
**从**
病人P,病人A,病人A,病人A,病人A,病人I
P.PatientID=A.PatientID
A.AccountNo=AL.AccountNo
和AL.ItemNo=I.ItemNo
和(p.FamilyName='Stange'和p.GivenName='Jessie');
每个SELECT语句都有三个部分:即:“SELECT->FROM->WHERE”。如果要返回整个记录集,可以在何处输入。你是哪里人?
SELECT DISTINCT Description, Date as treatmentDate
FROM doothey.Patient P
INNER JOIN doothey.Account A ON P.PatientID = A.PatientID
INNER JOIN doothey.AccountLine AL ON A.AccountNo = AL.AccountNo
INNER JOIN doothey.Item I ON AL.ItemNo = I.ItemNo
WHERE p.FamilyName = 'Stange' AND p.GivenName = 'Jessie';
SELECT DISTINCT Description, Date as treatmentDate
**FROM <A TABLE>**
WHERE doothey.Patient P, doothey.Account A, doothey.AccountLine AL, doothey.Item.I
AND P.PatientID = A.PatientID
AND A.AccountNo = AL.AccountNo
AND AL.ItemNo = I.ItemNo
AND (p.FamilyName = 'Stange' AND p.GivenName = 'Jessie');