DDLNo311

Suppress error upon ADD a foreign key, when a key of that name already exists.

Synopsis

[SQL]    DDLNo311=n

n is either 1 or 0. The default value is 0.

Description

When DDLNo311 is enabled (n = 1), when an attempt is made to ADD a foreign key, even if a key of that name already exists, InterSystems IRIS® data platform suppresses the SQLCODE -311 error.

For further details, refer to the ALTER TABLE command.

Changing This Parameter

On the SQL page of the Management Portal (System Administration > Configuration > SQL and Object Settings > SQL), select Ignore redundant DDL statements to suppress redundant SQLCODE errors.

You can also change DDLNo311 with the Config.SQLOpens in a new tab class (as described in the class reference) or by editing the CPF in a text editor (as described in Editing the Active CPF).

DDLNo315

DDLNo307

Purpose of this instance: Draft documentation

DocReleaseID: HealthConnect2025.1

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/staging/learning/iris-doc/2025.1.x/doc/ensemble/en-us/src/

/staging/learning/iris-doc/2025.1.x/doc/healthconnect/en-us/src/

/staging/learning/iris-doc/2025.1.x/doc/healthcommon/en-us/src/

/staging/learning/iris-doc/2025.1.x/doc/security/en-us/src/

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