EXECUTE statement;将特定于 DBMS 的 SQL 语句发送到 SAS 接口支持的 DBMS。 CREATE statement;通过create index在列上边创建索引,通过create table/view创建表格/视图。 DROP statement;删除表、视图或索引。 SELECT statement; 从表和视图中选择数据的列和行。
问我正在尝试在proc sql的where子句中使用case语句和循环EN1 一个 SQL 语句中的 select_expression 或 ...
PROC SQL is a powerful yet still overlooked tool within our SAS arsenal. PROC SQL can create tables, sort and summarize data, and join/merge data from multiple tables and in-line views. The SELECT statement with the CASEWHEN clause can conditionally process the data like the IF-THEN-ELSE ...
we can use the SPEDIS function in the SQL statement to look up any pair of the records. Here we set the argument to be 25 in order to detect any singlet.
select cast(1111 as char(4)) from sysibm.sysdummy1; --将1111转换为字符型的'1111',要注意的是不可以转换为varchar,这是db2不允许的。 动态sql --- PREPARE FROM 261.---定义 262. DECLARE CC VARCHAR(4000); 263. DECLARE SQLSTR VARCHAR(4000); 264....
EN#include <linux/module.h> #include <linux/init.h> #include <linux/kernel.h> #include <...
proc sql; create table a11 as select *, case when ((m_flag = 1) and (s_flag = 0) and (x_flag = 0)) and ((status = 'NEW PROSPECT') and (outcome = 'COMPETITIVE ACCOUNT') or (status = 'NEW PROSPECT') and (outcome = 'CONTACTED') or (status = 'NEW PROSPECT') and (...
func; proc sql noprint; create table ae_fcmp as select *, impute_ae(AESTDTC, AEENDTC, TRTSDTC) as AESTDT format = yymmdd10. from ae; quit; 子程序这里使用 OUTARGS 声明了一个对外部变量 AESTDT 的引用,使得子程序内部可以直接修改外部变量 AESTDT 的值:...
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 ...
11 A next step in this analysis of depression scores might be to select the residents with high depression scores. Of course, we could do this with an additional PROC SQL statement, selecting from the "re-merged" PHQSUM data set. However, we can also do it in a single step. ...