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我很好奇,为什么我得到一个语法错误铸造“TMP的” 的DataItem像这样广东话投在CTE
;WITH tmp(date, CAST(dataitem AS VARCHAR(255)), data) AS
(
SELECT
date, LEFT(msg, CHARINDEX(';', msg + ';') - 1),
STUFF(msg, 1, CHARINDEX(';', msg + ';'), '')
FROM
DB1
WHERE
action LIKE 'FILE UPLOAD FTP'
AND date BETWEEN '06/01/2016' AND '07/05/2017'
UNION ALL
SELECT
date, CHARINDEX(';', data + ';'),
STUFF(data, 1, CHARINDEX(';', Data + ';'), '')
FROM
tmp
WHERE
data > ''
)
SELECT
date, dataitem,
REPLACE(SUBSTRING(dataitem, 1, CHARINDEX('|', dataitem) - 1), 'FTP UPLOAD: ', '') AS orig_file_name,
SUBSTRING(dataitem, CHARINDEX('|', dataitem) + 1, 8000) AS file_name,
(SELECT TOP 1 counts FROM DB1
WHERE action LIKE 'FILTER' AND date > tmp.date
AND msg LIKE SUBSTRING(tmp.dataitem, CHARINDEX('|', dataitem) + 1, 8000) + '%'
ORDER BY date) AS filter_counts,
FROM
tmp
ORDER BY
date
考虑到这一工作,但会以不匹配的数据类型错误,由于:
;WITH tmp(date, dataitem , data) AS
(
SELECT
date, LEFT(msg, CHARINDEX(';', msg + ';') - 1),
STUFF(msg, 1, CHARINDEX(';', msg + ';'), '')
FROM
DB1
WHERE
action LIKE 'FILE UPLOAD FTP'
AND date BETWEEN '06/01/2016' AND '07/05/2017'
UNION ALL
SELECT
date, CHARINDEX(';', data + ';'),
STUFF(data, 1, CHARINDEX(';', Data + ';'), '')
FROM
tmp
WHERE
data > ''
)
SELECT
date, dataitem,
REPLACE(SUBSTRING(dataitem, 1, CHARINDEX('|', dataitem) - 1), 'FTP UPLOAD: ', '') AS orig_file_name,
SUBSTRING(dataitem, CHARINDEX('|', dataitem) + 1, 8000) AS file_name,
(SELECT TOP 1 counts FROM DB1
WHERE action LIKE 'FILTER'
AND date> tmp.date
AND msg LIKE SUBSTRING(tmp.dataitem, CHARINDEX('|', dataitem) + 1, 8000) + '%'
ORDER BY date) AS filter_counts,
FROM
tmp
ORDER BY
date
因为列名就是这样;名。他们没有像在查询定义中那样定义结构和类型https://technet.microsoft.com/en-us/library/ms175972(v=sql.105).aspx。注意:只有在查询定义中提供了所有结果列的不同名称时,列名列表才是可选的。 – xQbert