能给一个具体点的列子说明下么? distinct 去掉重复的 取唯一。 不过abap里 这个效率不是很高。spfli 是系统(System)内用来做演示的1个表 sql 中DISTINCT使用如:SELECT DISTINCT 列名称 FROM 表名... select distinct empno as 别名 from 表名; 潍坊个人出售二手车-上[58同城]二手车平台 [58同城]本地二手车,...
distinct 去掉重复的 取唯一。 不过abap里 这个效率不是很高。spfli 是系统内用来做演示的一个表
SELECT DISTINCT 语句会去重,只返回不同的记录。SELECT DISTINCT 语句可以使用 WHERE 子句指定查询条件,也可以使用 GROUP BY 子句和 HAVING 子句进行分组和聚合操作。SELECT DISTINCT 语句的基本语法如下: 代码语言:javascript 复制 SELECTDISTINCT<fields>INTO<internal table>FROM<data source>[WHERE<condition>][GROUPBY<...
When an internal table@itabwith elementary row type is accessed in theFROMclause of acommon table expressionafterWITH,*cannot be specified as aSELECTlist. Example Reads all columns of multiple rows. SELECT * FROM spfli WHERE carrid = 'LH' ...
If the aggregate function SUM for columns of the type DF16_DEC is used, we recommend using a target field of data type decfloat34 to avoid overflows. Example Determine the number of airlines flying to New York. DATA count TYPE i. SELECT COUNT( DISTINCT carrid ) FROM spfli INTO...
SelectFile>Add/Remove Open Tools… In the Add/remove Open Tools window, enter the following name in the Open Tool class name field: oracle.odi.sap.km._OdiSapAbapExecuteStoppable ClickAdd Open Tool. The Open Tool appears as shown below. ...
"Column selector ~ can be used to prefix every specified column."Here, it is optional. It is non-optional, e. g., if multiple data "sources in an ABAP SQL statement are edited and the column name "is not unique.zdemo_abap_flsch~cityto, ...
sap abap开发教程培训intro to-chapter.pptx,The SELECT DISTINCT StatementREPORT Y170DM72.TABLES: TABNA.DATA: CNTRY LIKE TABNA-COUNTRY.SELECT DISTINCT COUNTRY FROM TABNA INTO (CNTRY). WRITE: / CNTRY.ENDSELECT.Using SELECT DISTINCT, it is possible to elimina
SELECT a FROM my_test WHERE a > SLEEP(a); The query will evaluate each row, and the evaluation will cause a wait of some seconds. So you have the time to add a new row from another connection. The row will not appear in the results of these query – it’s not in the snapshot...
SelectFile>Add/Remove Open Tools… In the Add/remove Open Tools window, enter the following name in the Open Tool class name field: oracle.odi.sap.km._OdiSapAbapExecuteStoppable ClickAdd Open Tool. The Open Tool appears as shown below. ...