他给的示例SQL如下： select HName,case when IsEnable=1 then '启用' else '停用' from tb_User OQL是SOD框架的ORM查询语言，它类似Linq，但是它诞生的历史比Linq早，并且更加接近SQL语法。所以，对SOD框架而言，对应ORM如何支持CASE WHEN，就等于是问OQL如何支持CASE WHEN了。 这个问题已经不止这一个朋友来问我了，我想了下
proc sql; select product ,case region when 'Africa' then 'A' when 'Canada' then 'C' else 'None' end as first_letter from sashelp.shoes(obs=5); quit; 结果如下所示: 上面的例子中, case when语句是用else决定剩下不在判断语句里的值作为统一处理,end结束判断 case when 在end结尾处加一个as...
1 record in dataset A merges with many records to dataset B, or vice versa. Proc SQLis used/ Must be used for Many to Many merges. Solution: proc sql;create table dummy as select a.*,b.epoch from dummy_vs as a left join dummy_se as b on case when a.usubjid=b.usubjid and ...
1 record in dataset A merges with many records to dataset B, or vice versa. Proc SQLis used/ Must be used for Many to Many merges. Solution: proc sql;create table dummy as select a.*,b.epoch from dummy_vs as a left join dummy_se as b on case when a.usubjid=b.usubjid and ...
I am not quite sure whether can I use proc sql case when like this as below: proc sql; create table new as select origianl* case when codes=' ', then rules.codes where codesdate=min(original.codesdate) else original.codes end as codes; quit; whehter can I use other more simple ...
SQL中的CASE WHEN使用 Case具有两种格式。简单Case函数和Case搜索函数。 –简单Case函数 CASE sex WHEN ...
null是Java中的关键字。就像每种原始类型都有默认值一样，如int默认值为0，boolean的默认值为false，null是任何引用类型的默认值，不严格的说是所有object类型的默认值。
postgresql 了解sas proc sql中的case语句假设这是来自表DM_TURNOVER_TMP_STOCK和DM_TURNOVER_TMP_SALES...
【sas sql proc】case end 在sql中增加case可以增加数据处理的灵活性,注意结尾的end 1proc sql outobs=10;2title'this is an example of sql and case';3selectwangnei,date,4case5when200901<=date<=200903then'first'6when200904<=date<=200906then'second'7else'else'8endasseason9frommysas.mmsone10...
【sas sql proc】case end 在sql中增加case可以增加数据处理的灵活性,注意结尾的end 1proc sql outobs=10;2title'this is an example of sql and case';3selectwangnei,date,4case5when200901<=date<=200903then'first'6when200904<=date<=200906then'second'7else'else'8endasseason9frommysas.mmsone10...