2. 通过SELECT语句中的DISTINCT关键词来剔除重复行 【例子】: /*代码1*//*代码2*/ procsql outobs=12;procsql ;selectflightnumber, destinationselectdistinctflightnumber, destinationfromsasuser.internationalflights;fromsasuser.internationalflights;orderby1;/*按照SELECT语句中的第一个变量排序*/ 代码2输出的结...
proc sql;select distinctUSUBJID,SITEID,SITENAME,ARMfromAE;quit; ↑向右滑动查看全部代码↑ 上述代码使用 SELECT 语句从数据集 AE 中查询所有发生了不良事件的受试者信息,由于同一受试者可能发生多次不良事件,因此使用 DISTINCT 关键字去除重复的观测,每位受试者仅保留一条观测。 💡 一条 SELECT 语句中只能有...
proc sql; create table guanhui.loyaluserasselectdistinct a.serv_number,pay_way,feefromguanhui.buedetail_same a,guanhui.loyalusernumber bwherea.serv_number=b.serv_number; quit;
在两数据集匹配的时候加上distinct可以避免重复数据的出现 proc sql; create table guanhui.loyaluserasselectdistinct a.serv_number,pay_way,feefromguanhui.buedetail_same a,guanhui.loyalusernumber bwherea.serv_number=b.serv_number; quit; 1. 2. 3. 4. 5. 6....
Server不区分大小写，如果数据表TEST的TNAME列中有数据“abcd”和“Abcd”， 如果使用查询语句：select ...
proc sql ; create table Temp1_1 as select distinct a.*,b.BIRTHDAT from ICF as a left join DM as b on a.cn =b.cn and a.dn =b.dn ; quit; Merge If b; data Temp1_2; merge ICF(in=a) DM(in=b); by cn dn; if b ; ...
I am executing a query which has multiple columns in where clause which has multiple values. I know that in PROC SQL you can use IN condition to satisfy and get the correct output. FAKE DATA Question: CHF is defined using the following diagnosis codes:398.91, 402.11, 402.91, 404....
PROC SQL NOPRINT ; SELECT distinct provnum INTO :facid1 THROUGH :facid25 FROM in.ressamp2014 WHERE state = 'AK' ; QUIT; %PUT &facid1 &facid2 &facid20 ; WARNING: Apparent symbolic reference FACID20 not resolved. 025010 025015 &facid20 Output 21. SAS Log: Demonstrating the creation...
SQLprocedureenablesyoutouseSQLwithintheSASsystem whichfollowstheguidelinessetbytheAmericanNational StandardsInstitute(ANSI). Inmanycases,theSQLprocedurereplacestheneedformultiple DATAandPROCstepswithonequery. Fudan_R_Module_0208103 Contents Overview ResearchModules:SQL ...
mysql> select @@profiling; 0表示关闭,1表示开启,默认是关闭的。 使用如下命令开启:mysql> set profiling=1; 1.3 执行要分析的sql语句 mysql> select * from test_table where d=90000; 执行完成SQL后再执行:show profiles;得到profile id。 1.4 根据profile id查询指定SQL执行详情 ...