12.4.     SELECT-OPTIONS

SELECT-OPTIONS selcrit FOR {dobj|(name)}
  screen_options[OBLIGATORY|NO-DISPLAY][VISIBLE LENGTH vlen][NO-EXTENSION][NO INTERVALS][MODIF ID id]
  value_options [DEFAULT val1 [TO val2] [OPTION opt] [SIGN sgn]][LOWER CASE]
  [MATCHCODE OBJECT search_help][MEMORY ID pid]

该语句会生成一个名为selcrit选择条件内表，具体请参数OPEN SQL章节中的RANG条件内表

NO-EXTENSION：限制选择表为单行，元素输入后面不会出现按钮[iks?ten??n]

NO INTERVALS：只会出现LOW字段，To后面的HIGH字段不出现在选择屏幕上，但是用户仍然可以在Mutiple Selection窗口中输入范围选择。也就是说：只要有按钮，就可以选择多个条件与范围值  [?int?v?l]

OBLIGATORY：只有前面一个框框中出现钩，第二个框没有，也就是说该选项只能LOW字段有效 [??bl?g??t?:ri:]

DEFAULT：

TABLES: mara,marc.

SELECT-OPTIONS:werks FOR marc-werks OBLIGATORY DEFAULT 1001 TO 1007 SIGN I OPTION BT.

SELECT-OPTIONS:p2 FOR mara-matnr MODIF.
AT SELECTION-SCREEN OUTPUT.
  p2-low = 'aaaa'.
  APPEND p2 .

MEMORY ID：将第一个输入框中的数据存放到SAP MEMORY*享

12.4.1.           输入ABAP程序默认值时，需要加上“=”

如果输入框中”串时），需要在第一个框前面选择操作符，否则程序将会忽略这个值的输入，即查询所有的

12.4.2.           选择条件内表多条件组合规则

((Select Single Values OR…)OR(Select Intervals OR…))( AND NOT Exclude Single Values) … ( AND NOT Exclude Intervals) …

("MATNR" = '1' OR "MATNR" >= '2' OR "MATNR" <= '3' OR "MATNR" > '4' OR "MATNR" < '5' OR "MATNR" <> '6' OR "MATNR" <> '7' OR "MATNR" LIKE '23%' OR NOT ( "MATNR" LIKE '24_' ) OR"MATNR" BETWEEN '8' AND '9' OR NOT ( "MATNR" BETWEEN '10' AND '11' )) AND"MATNR" <> '12' AND "MATNR" < '13' AND "MATNR" > '14' AND "MATNR" <= '15' AND "MATNR" >= '16' AND "MATNR" = '17' AND "MATNR" = '18' AND NOT ( "MATNR" LIKE '25%' ) AND "MATNR" LIKE '26_' AND NOT ("MATNR" BETWEEN '19' AND '20' ) AND "MATNR" BETWEEN '21' AND '22'

12.4.3.           使用SELECT-OPTIONS替代PARAMETERS

实际上PARAMETERS 类型的参数完全可以使用SELECT-OPTIONS来替代，下面就是使用这种替换方式，外表看上去与PARAMETERS是一样的，但双击后）的值（如果此时要忽略这个条件，则要将单值转换为Rang或者是分两种情况来写SQL条件）：

TABLES: marc.
SELECT-OPTIONS: s_werks  FOR marc-werks NO INTERVALS NO-EXTENSION.