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4 paź 2013 · Implementing case 1 can be as simple as : proc sql; SELECT DISTINCT UPCASE(trim(line1)), UPCASE(trim(line2)), pcode FROM contacts ;quit; Implementing case 2 can be as simple as: proc sql; SELECT DISTINCT UPCASE( trim(line1) || ' ' || trim(line2) ) , pcode FROM contacts ;quit;
4 maj 2020 · For example you could count distinct COMP_ID (which will ignore the missing values) and then count the distinct NAMEs only for records that have missing COMP_ID. select count(distinct comp_id) as n_comp_ids , count(distinct case when (missing(comp_id)) then name else ' ' end) as n_other_names from test ;
8 maj 2017 · SELECT. Outlet, Period, Brand, case when Brand not in ('CD') then Brand else ' ' end as Brand_Players, count(distinct calculated Brand_Players) as k_Brands_Players. group by period, outlet; quit; The expected output is: Outlet Period Brand k_Brands_Players.
8 maj 2023 · We can use the SELECT DISTINCT statement within PROC SQL to select all unique rows from the dataset: /*select all unique rows*/ proc sql ; select distinct * from my_data; quit ; Note : The star ( * ) symbol after SELECT DISTINCT tells SAS to select all columns in the dataset.
This tutorial explains how to ignore duplicates while specifying conditions / criteria in SQL queries. You must have used DISTINCT keyword to remove duplicates. It is frequently used with COUNT function to calculate the number of unique cases.
The CASE expression selects values if certain conditions are met. A CASE expression returns a single value that is conditionally evaluated for each row of a table (or view).
This paper presents coding techniques that perform text case conversions, concatenation of two or more character strings, pattern and phonetic matching operations, updates to data in a table, and other useful coding techniques for SAS and PROC SQL users.
