Sql 结合几个结果
我有两个相似的问题 例如:Sql 结合几个结果,sql,union,sql-server-2014,unpivot,with-statement,Sql,Union,Sql Server 2014,Unpivot,With Statement,我有两个相似的问题 例如: with CategoryHistory AS ( SELECT category.GUID as id, ----HERE MANY FIELDS---- category.__$operation AS operation, map.tran_begin_time as beginT, map.tran_end_time as endT FROM cdc.fn_cdc_get_all_changes
with CategoryHistory AS (
SELECT
category.GUID as id,
----HERE MANY FIELDS----
category.__$operation AS operation,
map.tran_begin_time as beginT,
map.tran_end_time as endT
FROM cdc.fn_cdc_get_all_changes_dbo_EXT_BalanceHC_ZapasCategory(sys.fn_cdc_get_min_lsn('dbo_EXT_BalanceHC_ZapasCategory'), sys.fn_cdc_get_max_lsn(), 'all') AS category
INNER JOIN [cdc].[lsn_time_mapping] map
ON category.[__$start_lsn] = map.start_lsn
)
SELECT operation, fields, valueses, beginT, endT FROM CategoryHistory
unpivot ( [valueses] for fields in
(
----HERE MANY FIELDS----
))p
我可以将
的与
结果结合起来吗?问题是,我希望从查询结果中取消某些字段。也许您只是希望这样:
SELECT ch.operation, ch.beginT, ch.endT, v.field, v.val
FROM CategoryHistory ch cross apply
(values ('field1', field1), ('field2', field2), . . .
) f(field, val);
我发现这比使用unpivot
容易,是的,但可能有更简单的方法。我建议您提供样本数据和期望的结果。我正在使用CDC获取一些表格的统计数据。表可以相互关联,但这并不重要。我想创建一个视图,在这个视图中取消一些表并将它们合并到一个表中?在我的例子中,分类历史是一个别名…@Seva。在交叉应用之前
。