topic Re: Doubt about Select statement. in Application Development and Automation Discussions

Doubt about Select statement.

Former Member — Thu, 28 Feb 2008 03:18:02 GMT

Hi folks!!

I have a few doubts about the select statements, it may be a silly things but its useful for me.

what is difference between below statment.

1)SELECT * FROM TABLE.

2)SELECT SINGLE * FROM TABLE

3)SELECT SINGLE FROM TABLE.

Hope i will get answer,thanks in advance.

Regards

Richie..

Re: Doubt about Select statement.

Former Member — Thu, 28 Feb 2008 03:21:18 GMT

Considering there are no syntax errors and to keep it simple:

1)SELECT * FROM TABLE. 
"---> Selects all records that meets selection criteria

2)SELECT SINGLE * FROM TABLE 
"---> Selects first record that meets the criteria

3)SELECT SINGLE FROM TABLE. 
"---> Select value from specified fields from the first record that meets the criteria.

Re: Doubt about Select statement.

Former Member — Thu, 28 Feb 2008 03:21:43 GMT

Hi Richie,

1 - You are selecting all the fields, and this is generally used to select the data into internal table

2 - You are selecting all the fields but only one record

3 SELECT SINGLE <field name/s> No of fields based on given parameter.

Regards,

Atish

Re: Doubt about Select statement.

Former Member — Thu, 28 Feb 2008 03:25:55 GMT

Hi,

try this and if possible use sap help.i mean place the cursor on select and press F1.

Types of select statements:

1. select * from ztxlfa1 into table it.

This is simple select statement to fetch all the data of db table into internal table it.

2. select * from ztxlfa1 into table it where lifnr between 'V2' and 'V5'.

Thisis using where condition between v2 and v5.

4. select * from ztxlfa1 where land1 = 'DE'. "row goes into default table work Area

5. select lifnr land1 from ztxlfa1

into corresponding fields of it "notice 'table' is omitted

where land1 = 'DE'.

append it.

endselect.

Now data will go into work area. and then u will add it to internal table by

append statement.

6. Table 13.2 contains a list of the various forms of select as it is used with internal tables and their relative efficiency. They are in descending order of most-to-least efficient.

Table 13.2 Various Forms of SELECT when Filling an Internal Table

Statement(s) Writes To

select into table it Body

select into corresponding fields of table it Body

select into it Header line

select into corresponding fields of it Header line

7. SELECT VBRK~VBELN

VBRK~VKORG

VBRK~FKDAT

VBRK~NETWR

VBRK~WAERK

TVKOT~VTEXT

T001~BUKRS

T001~BUTXT

INTO CORRESPONDING FIELDS OF TABLE IT_FINAL

FROM VBRK

INNER JOIN TVKOT ON VBRK_{VKORG = TVKOT}VKORG

INNER JOIN T001 ON VBRK_{BUKRS = T001}BUKRS

WHERE VBELN IN DOCNUM AND VBRK~FKSTO = ''

AND VBRK~FKDAT in date.

Select statement using inner joins for vbrk and t001 and tvkot table for this case based on the conditions

8. SELECT T001W~NAME1 INTO TABLE IT1_T001W

FROM T001W INNER JOIN EKPO ON T001W_{WERKS = EKPO}WERKS

WHERE EKPO~EBELN = PURORD.

here selecting a single field into table it1_t001winner join on ekpo.

9. SELECT BUKRS LIFNR EBELN FROM EKKO INTO CORRESPONDING FIELDS OF IT_EKKO WHERE EBELN IN P_O_NO.

ENDSELECT.

SELECT BUTXT FROM T001 INTO IT_T001 FOR ALL ENTRIES IN IT_EKKO WHERE BUKRS = IT_EKKO-BUKRS.

ENDSELECT.

APPEND IT_T001.

here I am using for all entries statement with select statement. Both joins and for all entries used to fetch the data on condition but for all entries is the best one.

10. SELECT A_{VBELN B}VTEXT A_{FKDAT C}BUTXT A_{NETWR A}WAERK INTO TABLE ITAB

FROM VBRK AS A

INNER JOIN TVKOT AS B ON

A_{VKORG EQ B}VKORG

INNER JOIN T001 AS C ON

A_{BUKRS EQ C}BUKRS

WHERE A_{VBELN IN BDOCU AND A}FKSTO EQ ' ' AND B~SPRAS EQ

SY-LANGU

AND A_{FKDAT IN BDATE AND A}VBELN EQ ANY ( SELECT VBELN FROM

VBRP WHERE VBRP~MATNR EQ ITEMS ).

Here we are using sub query in inner join specified in brackets.

Thanks,

chandu.

Re: Doubt about Select statement.

Former Member — Thu, 28 Feb 2008 03:50:32 GMT

hi,

1)SELECT * FROM TABLE

this one selects all records from the table.

2)SELECT SINGLE * FROM TABLE

this one searches all records and selects only single field, but dont use this ststement performance will degarde.

3)SELECT SINGLE FROM TABLE.

this one selects particular field.

4)select * from dbtab into corresponding fields of table itab.

write:/ itab-field1,itab-field2,......

this will selects all the records.

5)select * from dbtb into itab.

write:/ itab-field1,itab-field2,......

endselect.

this one will give all records.

6)select * from dbtb into itab.

endselect.

write:/ itab-field1,itab-field2,......

this one will give only last record.

reward if its useful

Edited by: p541399 on Feb 28, 2008 9:21 AM

Re: Doubt about Select statement.

Former Member — Thu, 28 Feb 2008 04:08:28 GMT

Hi,

1. SELECT * FROM TABLE.

This select statement selects all the fields and records from the table.

2)SELECT SINGLE * FROM TABLE

This select statement selects all the fields of the first record according to the where condition.

3)SELECT SINGLE FROM TABLE.

This select statement selects only the field that meets the where condition requirement.

Regards,

kavitha.