SAP DB_EXISTS_ALIAS Function Module for

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DB_EXISTS_ALIAS is a standard db exists alias 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 exists alias FM, simply by entering the name DB_EXISTS_ALIAS into the relevant SAP transaction such as SE37 or SE38.

Function Group: SDB22
Program Name: SAPLSDB22
Main Program: SAPLSDB22
Appliation area:
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function DB_EXISTS_ALIAS 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_EXISTS_ALIAS'"
  EXPORTING
   ALIASNAME =  "
*  CON_NAME = '' "

 IMPORTING
   SUBRC =  "

EXCEPTIONS
   WRONG_DATABASE_SYSTEM = 1    SQL_ERROR = 2    INTERNAL_ERROR = 3 

.

IMPORTING Parameters details for DB_EXISTS_ALIAS

ALIASNAME -

Data type: DDOBJNAME
Optional: No
Call by Reference: Yes

CON_NAME -

Data type: DBCON_NAME
Default: ''
Optional: Yes
Call by Reference: Yes

EXPORTING Parameters details for DB_EXISTS_ALIAS

SUBRC -

Data type: SYSUBRC
Optional: No
Call by Reference: Yes

EXCEPTIONS details

WRONG_DATABASE_SYSTEM -

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

SQL_ERROR -

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

INTERNAL_ERROR -

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

Copy and paste ABAP code example for DB_EXISTS_ALIAS 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_EXISTS_ALIAS

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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