returned from the table on the right side of the statement, in this case the remdates tables. Some databases require a slightly different syntax for an outer join. Oracle uses the following syntax for their outer joins: Proc SQL: create table merged as select treat, removal_date from Treaments, remdates Where treatments.tid(+) = remdates.rid;
【sas sql proc】inner join or outer join 1proc sql;2title'table 1+11';3select*frommysas.ifthen1,mysas.ifthen11;4quit;56proc sql;7title'table 1';8select*frommysas.ifthen1;910title'table11';11select*frommysas.ifthen11;12quit; 第一段显示的是两表联合的笛卡尔积结果。 第二段仅是分...
【sas sql proc】inner join or outer join 1proc sql;2title'table 1+11';3select*frommysas.ifthen1,mysas.ifthen11;4quit;56proc sql;7title'table 1';8select*frommysas.ifthen1;910title'table11';11select*frommysas.ifthen11;12quit; 第一段显示的是两表联合的笛卡尔积结果。 第二段仅是分...
returned from the table on the right side of the statement, in this case the remdates tables. Some databases require a slightly different syntax for an outer join. Oracle uses the following syntax for their outer joins: Proc SQL: create table merged as select treat, removal_date from Treamen...
【sas sql proc】inner join or outer join mob604756edd67c 文章标签sql其他文章分类代码人生 1proc sql;2title'table 1+11';3select*frommysas.ifthen1,mysas.ifthen11;4quit;56proc sql;7title'table 1';8select*frommysas.ifthen1;910title'table11';11select*frommysas.ifthen11;12quit;...
2 x1 2 x2 3 y 5 v 5 v ; run; proc sql; create table t9 as select * from d_a union select * from d_b; quit; proc sql; create table t10 as select * from d_a union all select * from d_b; quit; proc sql; create table t11 as select * from d_a outer union corr sel...
Nonetheless, even DATA step die-hards must grudgingly acknowledge that there are some tasks, such as the many- to-many merge or the "not-quite-equi-join," requiring Herculean effort to achieve with DATA steps, that SQL can accomplish amazingly concisely, even elegantly. Through increasingly ...
Join、Left Join、Right Join、Full Join、On、 Where区别和用法，不用我说其实前面的这些基本SQL语法...
SAS 中Proc SQL的应用与提高
/*21.1.9.1与简单连接功能相同的Cross连接*/procsql;select*fromresdat.chinacrossjoinresdat.usa;quit; /*21.1.9.2包含所有行的Union连接*/procsql;select*fromresdat.chinaunionjoinresdat.usa;quit; /*21.1.9.3使用自动匹配连接的Natural连接*/procsql;select*fromresdat.chinaunionjoinresdat.usa;quit; ...