How To Fix 28025 - Syntax error in constraint

28025 - Overview

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 025

• Message text: Syntax error in constraint

What causes this issue?

The syntax check found errors in the condition. Please note that, as a
rule, hyphens ("-") should not be used in keys (names of
characteristics, classes, tables, and functions). Also, changes to
master data which are made in parallel to object dependency maintenance
are not always recognized due to buffering of data.

System Response

The cursor marks the place where the error occurs. You may have a list
of detailed causes of errors to choose from.

How to fix this error?

Check your entry and correct the error. You have the following options
for analyzing and correcting the error:
If you cannot see immediately what is wrong, selet the <ZH>Details</>
pushbutton to see a detailed message. The cursor marks the place in
your source code and, if required, you can also look at the long text
of the detailed message for further information. If the detailed
message does not apply to your error, you can repeat this check
function, selecting a different detailed message. See below for an
example of a constraint.
Rename any keys (such as characteristic names) which may contain
hyphens. To do this, on the basic data screen of characteristics
maintenance functions, choose function <LS>Characteristic -> Rename</>.
If changes to master data which are made in parallel to object
dependency maintenance are not recognized, start the maintenance
function again.
You can still save your dependency if the syntax is incorrect. The
status of the dependency is then set to <ZH>locked</>, and the
dependency cannot be used in configuration.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Example of a constraint:
OBJECTS:
?S IS_A (300)STAIRCASE
WHERE ?A = ANGLE; ?HB = HEIGHT_BANNISTER,
?P IS_A (200)POST
where ?HP = HEIGHT; ?PTS = POSITION_ON_STEP.
CONDITION:
PART_OF(?P, ?S).
RESTRICTION:
?HP = ?HB+?PTS*TAN(2*3.14/360 * ?A).
INFERENCES:
?HP, ?HB, ?PTS
Example of how an object is declared in a constraint:
OBJECTS:
?O IS_OBJECT
(DOCUMENT)(017)(TYPE=DRW, VERSION=00, PART=000, NR='ST-12345'),

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 28025 - Syntax error in constraint ?

  The SAP error message 28025, which indicates a "Syntax error in constraint," typically arises in the context of database constraints, particularly when defining or modifying database tables or views in the ABAP Dictionary (SE11) or during the execution of certain SQL statements.
  
  Cause:
  
  Incorrect Syntax: The most common cause of this error is a syntax error in the definition of a constraint, such as a primary key, foreign key, or unique constraint. This could be due to typos, missing keywords, or incorrect use of SQL syntax.
  Invalid References: If the constraint references a field or table that does not exist or is incorrectly defined, it can lead to this error.
  Data Type Mismatch: If the fields involved in the constraint have incompatible data types, this can also trigger a syntax error.
  Logical Errors: Sometimes, the logical structure of the constraints may not align with the underlying data model, leading to errors.
  
  
  Solution:
  
  Check Syntax: Review the syntax