SAP ABAP OPEN-SQL 动态SQL

静态SQL

静态SQL可以使用 ABAP 7.4 新语法 Static SQL can be suitable for ABAP 7.4

静态SQL示例

DATA:
	lt_mara TYPE STANDARD TABLE OF mara.
	
SELECT
	matnr
FROM
	mara
WHERE
	matnr EQ '0000001'
INTO TABLE @lt_mara. 

动态SQL

动态SQL目前不支持 ABAP 7.4 新语法 Active SQL isn't suitable for the ABAP 7.4
INTO TABLE 不能放在最后 INTO TABLE can't be the end
括号是必须的 Brackets required

动态SQL示例

DATA:
	lv_field(20) TYPE c,
	lv_table(10) TYPE c,
	lv_where(40) TYPE c,
	lt_mara TYPE STANDARD TABLE OF mara.

lv_field = 'matnr'.
lv_table = 'mara'.
lv_where = 'matnr EQ 000001'.

" Example 1
SELECT
	(lv_field)
FROM
	(lv_table)
INTO TABLE lt_mara
WHERE
	(lv_where).

" Example 2
SELECT
	(lv_field)
INTO TABLE lt_mara
FROM
	(lv_table)
WHERE
	(lv_where).

注意 Focus

• WHERE 条件语句里应为内部值 Value Internal，如果有前导零需要加上前导零 Preamble Zero

未完待续...
To be continued