我有需要转换为redshift的SQL Server脚本。
这是其中的一部分,我对此有疑问
LEFT JOIN
(SELECT
cog.ClientId,
MAX(CASE me.metrickey WHEN 'contacts-employee_active_count_day_org' THEN mu.value ELSE 0 END) AS ActiveEmployees
FROM
public.module_utilization mu
JOIN
(SELECT
me.id,
me.ChannelId + '-' + me.metrickey AS MetricKey
FROM
public.module_metric me) AS me ON me.id = mu.metricid
LEFT JOIN
public.contacts_client_organization cog ON cog.clientorganizationid = mu.organizationid
WHERE
mu.dy >= DATEADD(Day, -30, GETDATE())
AND me.metrickey IN ('contacts-employee_active_count_day_org')
GROUP BY
cog.clientid) metrics ON metrics.ClientId = be.clientid
WHERE
be.organizationid = 65277
AND be.timeworkedfrom >= DATEADD(MONTH, -6, DATEADD(month, DATEDIFF(month, 0, GETDATE()), 0))
AND be.timeworkedfrom < TO_CHAR(DATE_TRUNC('month', GETDATE()), 'MM/DD/YYYY')
AND be.isdeleted IS NULL
AND be.isvoid IS NULL
在这一行
AND be.timeworkedfrom >= DATEADD(MONTH, -6, DATEADD(month, DATEDIFF(month, 0, GETDATE()), 0))
我收到此错误
无效的操作:函数pg_catalog.date_diff(“未知”,整数,没有时区的时间戳)不存在;
据我所知,是由于0
我该如何解决这些问题?
答案 0 :(得分:1)
您突出显示的WHERE
子句逻辑是将timeworkedfrom
与当前月的六个月之前的日期进行比较。您可以更改:
AND be.timeworkedfrom >= DATEADD(MONTH, -6, DATEADD(month, DATEDIFF(month, 0, GETDATE()), 0))
对此:
AND be.timeworkedfrom >= date_trunc('month', current_date) - interval '6 month'