SAP NLS_DBCHECK Function Module for Calculate legal length of double byte strings

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NLS_DBCHECK is a standard nls dbcheck SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for Calculate legal length of double byte strings processing and below is the pattern details for this FM, 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 nls dbcheck FM, simply by entering the name NLS_DBCHECK into the relevant SAP transaction such as SE37 or SE38.

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

Function NLS_DBCHECK 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 'NLS_DBCHECK'"Calculate legal length of double byte strings
  EXPORTING
   LENGTH =  "Length whose string must be cut.
   TEXT =  "String literal.

 IMPORTING
   FIXED_LENGTH =  "Legal length for the string cut.
   FIXED_TEXT =  "Legal string literal.

EXCEPTIONS
   INVALID_LENGTH_VALUE = 1 

.

IMPORTING Parameters details for NLS_DBCHECK

LENGTH - Length whose string must be cut.

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

TEXT - String literal.

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

EXPORTING Parameters details for NLS_DBCHECK

FIXED_LENGTH - Legal length for the string cut.

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

FIXED_TEXT - Legal string literal.

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

EXCEPTIONS details

INVALID_LENGTH_VALUE - The import parameter 'LENGTH' must be greater than 0.

Data type:
Optional: No
Call by Reference: Yes

Copy and paste ABAP code example for NLS_DBCHECK 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 NLS_DBCHECK

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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