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。
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 ...
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 ...
另外,值得提一句,EXEC SQL BEGIN DECLARE SECTION;中char和VARCHAR类型可以不是二维数组,但其它类型的变量必须不能是这种二维数组。 参考: The host variables in the WHERE clause must be either all scalars or all arrays. If they are scalars, Oracle executes the DELETE statement only once. If they are...
ERROR: Expected %TO not found in %DO statement. 如果不使用宏,解决方案是: proc sql; execute( create table test as ( select table1.A, table1.B, case when table2.A < table2.C and table2.A > table3.D then table2.D else table3.D end as return1, ...
sql; select monotonic() as obs, ( case sum(missing(ssn1), missing(ssn2)) when 0 then 'No missing' when 1 then 'One missing value' else'Both missing values' end ) as status 'Missing status' from ssn_data; quit; 5. The SPEDIS and SOUNDEX functions The two functions can fulfill...
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:...
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....
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. ...