sql server基本流程语句
1、IF...ELSE (sql server没有end,oracle中有)
DECLARE @co INT
SET @co=(SELECT COUNT(1) FROM HGOS_UC.dbo.Emp_Ora_Role eor WHERE eor.EmpId=539 AND eor.DepId=35)
IF @co=0
SELECT cr.*
FROM HGOS.dbo.CustomerRM AS cr
JOIN HGOS_WF.dbo.Task AS t ON cr.CompanyCode = t.OID
LEFT JOIN HGOS.dbo.Customer_Ora_R AS cor ON cor.CId=cr.Id
WHERE cor.OrgId=35
AND t.State = 4 AND ISNULL(t.IsDelete,0) = 0 AND ISNULL(cr.IsFreeze,0) = 0
AND cr.CreateUserId=539
ELSE
SELECT cr.*
FROM HGOS.dbo.CustomerRM AS cr
JOIN HGOS_WF.dbo.Task AS t ON cr.CompanyCode = t.OID
LEFT JOIN HGOS.dbo.Customer_Ora_R AS cor ON cor.CId=cr.Id
WHERE cor.OrgId=35
AND t.State = 4 AND ISNULL(t.IsDelete,0) = 0 AND ISNULL(cr.IsFreeze,0) = 0
2、CASE...WHEN...THEN
SELECT
t.ID,
CASE
WHEN STATE=1 THEN '审批中'
WHEN STATE=2 THEN '已通过'
ELSE '已驳回'
END
FROM HGOS_WF.dbo.Task AS t;
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