Resets the current integer value of a sequence
defined in the specified database.
Syntax
DYNAMIC-CURRENT-VALUE(
sequence-exp , logical-dbname-exp [ , tenant-id ] ) = expression
|
-
sequence-exp
- A character expression that evaluates to the name of a sequence.
-
logical-dbname-exp
- A character expression that evaluates to the name of a connected database
in which the sequence is defined.
-
tenant-id
- An integer expression that evaluates to the tenant ID of a regular tenant,
including the default tenant (0). This option applies
only to a multi-tenant sequence specified by sequence-expression and
is intended for access primarily by a super-tenant user.
If you
are a regular-tenant user and you specify tenant-id,
the specified tenant must be the same as the tenant associated with
the database connection identity for logical-dbname-expression or
the AVM raises a run-time error.
If you are a super-tenant
user and you do not specify tenant-id, the function
assumes the effective tenant ID (GET-EFFECTIVE-TENANT-ID function).
If the sequence specified by sequence-expression is
non-multi-tenant (a shared sequence in a multi-tenant database),
and you specify tenant-id, the option is ignored.
-
expression
- An integer expression assigned as the current value of the specified sequence.
If expression is outside the boundary set by
the initial value (at one end) and the lower limit or upper limit
(at the other end) for the sequence, the AVM returns an error, and
the sequence value remains unchanged.
Notes
- If logical-dbname-exp contains
the Unknown value (?), the AVM generates a run-time error.
- You cannot set a sequence to the Unknown value (?).
- If sequence-exp is a multi-tenant sequence in the database, each
regular tenant has their own current value of the sequence. So, each tenant that invokes
this statement can set their own current values, which can be the same or different than
the current values set by other tenants. If the sequence is shared in a multi-tenant
database, any current value set by this statement is shared by all tenants in the
database.
Caution:
Be very careful using multi-tenant sequences when you are updating shared
tables or multi-tenant tables for a tenant group. For more information, see the sections
on using multi-tenant-enabled sequences in OpenEdge Development: Programming
Interfaces.
- The user must have CAN-WRITE privileges on the _Sequence table to use the
DYNAMIC-CURRENT-VALUE statement.
- The value of a sequence set by the DYNAMIC-CURRENT-VALUE statement persists in the
database until the next DYNAMIC-CURRENT-VALUE statement or DYNAMIC-NEXT-VALUE function
is invoked for the sequence, or until the sequence is deleted from the database.
- You can use any combination of the DYNAMIC-NEXT-VALUE function,
DYNAMIC-CURRENT-VALUE function, DYNAMIC-CURRENT-VALUE statement, and their non-dynamic
versions.
