Proc Sql Case When Group By

If case operand equals when condition then the when clause is true.

Proc sql case when group by. For example if the group by item is 2 then the results are grouped by the values in the second column of the select clause list. In the above working code i have to type out the case statement twice. The following example attempts to group high and low temperature information for each city in the sql worldtemps table by country. The sql procedure supports conditionally selecting result values from rows in a table or view in the form of a case expression.

Case statement posted 05 25 2016 11 40 pm 5250 views in reply to blakezen also i think it is preferable to code your where conditions as sql where clauses and not as dataset options because you can mix references to many tables in a sql where clause and they are easier to read. When datediff mm order date getdate between 0 and 6 then recent. If the when condition is true for the row that is being executed then the result expression that follows then is executed. When you use a group by clause without an aggregate function proc sql treats the group by clause as if it were an order by clause and displays a message in the log that informs you that this has happened.

When order date is null then unknown. Create table test caltable4smartcast4 as select a cal date as caldate case when weekday a cal date 7 then satd else a day type end as day type a region code from test cal trading hh v a where region code vic1 group by a cal date case when weekday a cal date 7 then satd else a day type end a region code. Integers can be substituted for column names that is select object items in the group by clause. Similar to an if then construct in the data step a case expression uses one or more when then clause s to conditionally process some but not all the rows in a table.

If more than one group by item is specified then the first one determines the major grouping. The following example attempts to group high and low temperature information for each city in the sql worldtemps table by country.