SAP DB_ALTER_TABLE_S Function Module for

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DB_ALTER_TABLE_S is a standard db alter table s SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used to perform a specific ABAP function and below is the pattern details, showing its interface including any import and export parameters, exceptions etc. there is also a full "cut and paste" ABAP pattern code example, along with implementation ABAP coding, documentation and contribution comments specific to this or related objects.

See here to view full function module documentation and code listing for db alter table s FM, simply by entering the name DB_ALTER_TABLE_S into the relevant SAP transaction such as SE37 or SE38.

Function Group: SDB2
Program Name: SAPLSDB2
Main Program: SAPLSDB2
Appliation area: S
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function DB_ALTER_TABLE_S pattern details

In-order to call this FM within your sap programs, simply using the below ABAP pattern details to trigger the function call...or see the full ABAP code listing at the end of this article. You can simply cut and paste this code into your ABAP progrom as it is, including variable declarations.

CALL FUNCTION 'DB_ALTER_TABLE_S'"
  EXPORTING
*  DBSYS = SY-DBSYS "
*  NO_EXEC = ' ' "
*  NO_PROG = ' ' "
*  PRID = 0 "
*  PROGNAME = ' ' "Name of gen. program
*  DBCHECK_LEVEL = ' ' "
   TABNAME =  "
*  DDHEAD_OLD =  "
*  DDHEAD_NEW =  "

 IMPORTING
   GENPROG =  "
   INFO =  "

TABLES
   DDFIELDS_NEW =  "Table of the new DD table fields
   DDFIELDS_OLD =  "Table of the old DD table fields
   STATEMENTS =  "Table of the generated statements

EXCEPTIONS
   ALTER_NOT_NECESSARY = 1    ALTER_NOT_POSSIBLE = 2    PROGRAM_NOT_GENERATED = 3    PROGRAM_NOT_WRITTEN = 4    TABLE_DOES_NOT_EXIST = 5    TABLE_NOT_ALTERED = 6 

.

IMPORTING Parameters details for DB_ALTER_TABLE_S

DBSYS -

Data type: SY-DBSYS
Default: SY-DBSYS
Optional: Yes
Call by Reference: No ( called with pass by value option)

NO_EXEC -

Data type:
Default: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)

NO_PROG -

Data type:
Default: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)

PRID -

Data type: SY-TABIX
Optional: Yes
Call by Reference: Yes

PROGNAME - Name of gen. program

Data type: TRDIR-NAME
Default: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)

DBCHECK_LEVEL -

Data type:
Default: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)

TABNAME -

Data type: DD02L-TABNAME
Optional: No
Call by Reference: No ( called with pass by value option)

DDHEAD_OLD -

Data type: DDHEADER
Optional: Yes
Call by Reference: Yes

DDHEAD_NEW -

Data type: DDHEADER
Optional: Yes
Call by Reference: Yes

EXPORTING Parameters details for DB_ALTER_TABLE_S

GENPROG -

Data type: TRDIR-NAME
Optional: No
Call by Reference: No ( called with pass by value option)

INFO -

Data type: DDV_ALTERINFO
Optional: No
Call by Reference: No ( called with pass by value option)

TABLES Parameters details for DB_ALTER_TABLE_S

DDFIELDS_NEW - Table of the new DD table fields

Data type: DDFIELD
Optional: No
Call by Reference: No ( called with pass by value option)

DDFIELDS_OLD - Table of the old DD table fields

Data type: DDFIELD
Optional: No
Call by Reference: No ( called with pass by value option)

STATEMENTS - Table of the generated statements

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

EXCEPTIONS details

ALTER_NOT_NECESSARY - No DB-relevant changes

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

ALTER_NOT_POSSIBLE - Change not possible with Alter Table

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

PROGRAM_NOT_GENERATED - Program could not be generated

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

PROGRAM_NOT_WRITTEN - Program could not be written

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

TABLE_DOES_NOT_EXIST - Table does not exist

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

TABLE_NOT_ALTERED - Error changing the table

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

Copy and paste ABAP code example for DB_ALTER_TABLE_S Function Module

The ABAP code below is a full code listing to execute function module POPUP_TO_CONFIRM including all data declarations. The code uses the original data declarations rather than the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the newer method of declaring data variables on the fly. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8), which i why i have stuck to the origianl for this example.

ABAP code using 7.40 inline data declarations to call FM DB_ALTER_TABLE_S

The below ABAP code uses the newer in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. Please note some of the newer syntax below, such as the @DATA is not available until 4.70 EHP 8.

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