在第一条 SELECT 语句中,我们得到了关于 carrid 和 connid 的数据,但是只有当 planetype 是 '747-400'。在第二个表中,由于我们没有 planetype ,我们只能得到我们想要的行。 在使用 FOR ALL ENTRIES 时,我们需要记住的一件事是,我们需要在执行带有 FOR ALL ENTRIES 的SELECT ...
此外,当我们的 FOR UPDATE 语句导致死锁时,将引发一个异常,SELECT 语句绕过 SAP 缓冲也很重要。 SELECT SINGLE FOR UPDATE carrid connidFROM sflightINTO CORRESPONDING FIELDS OF TABLE gs_outWHERE carrid EQ 'AA'. GROUP BY GROUP BY 用于分组查询,如分组求和的查询。 SELECT carrid connidFROM sflightINTO...
1,249 SAP Managed Tags: ABAP Development When I run two sessions with the same T-code the statement 'Select Single For Update' can not lock the table. All the SY-SUBRC = 0. Why?Reply 1 ACCEPTED SOLUTION Former Member 2009 Dec 07 3:24 PM 0 Kudos 294 SAP Managed Tags: ...
而使用select endselect时候,当判断条件为SY-SUBRC <> 0时,则执行成功,即此时的SY-SUBRC = 0。 备注:按照下面的解释,当 SELECT sets SY-SUBRC to 0 if at least one line was read, otherwise to 4, or possibly 8 in SELECT SINGLE FOR UPDATE. 即,当SY-SUBRC = 0时,至少有一行数据; 其他情况为SY...
Am I missing something with FOR UPDATE addition in Open SQL? When I use it I can't get a lock to appear to SM12. For example, if I select a single record for update from table EKKO it's still possible to effect a normal MEPO update of the releavnt purchase order even before a ...
a) select * b) Insert c) Delete d) select single for update e) modify 33. data: begin of itab occurs 0, num1 type I, num2 type I, num3 type I, mark, end of itab. Delete from itab where mark eq 'D'. Itab entries: 1 2 3 D 2 3 4 3 4 5 D 4 5 6 D 7 8 9 ...
1. SELECT [SINGLE [FOR UPDATE] DISTINCT] * 2. SELECT [SINGLE [FOR UPDATE] DISTINCT] s1 ... sn 3. SELECT [SINGLE [FOR UPDATE] DISTINCT] (itab) FROM clause Variants: 1. ... FROM dbtab Additions: 1. ... CLIENT SPECIFIED
1.SQL命令 命令 单条/多条 示例 附加说明 SELECT/ SELECT SINGLE 单条查询 SELECT id, name,age FROM dbtab INTO TABLE @DATA(itab). 多条查询 SELECT SINGLE name INTO @DATA(lv_name)
_select SINGLE_ * FROM tstc WHERE tcode EQ p_tcode. IF sy-subrc EQ 0. _select SINGLE_ * FROM tadir WHERE pgmid = "R3TR" AND object = "PROG" AND obj_name = tstc-pgmna. MOVE : tadir-devclass TO v_devclass. IF sy-subrc NE 0. ...
SELECT语句简介 SELECT SINGLE SELECT SEVERAL LINE SELECT并且输出打印的两种方式 1. SELECT...ENDSELECT 2.SELECT(LOOP...ENDLOOP) 数据库表SFLIGHT(最下方案例也使用该数据库表): SELECT...AS 动态SELECT语句 1.使用DISTINCT 2. 不适用DISTINCT SELECT语句简介 ...