boolean
nullCall, in Class Function
Documentation
From 5WD-02-Foundation-2002-12
11.50 <SQL-invoked routine>
<null-call clause> ::= RETURNS NULL ON NULL INPUT | CALLED ON NULL INPUT
If PROCEDURE is specified, then:
- <null-call clause> shall not be specified.
if <null-call clause> is not specified, then
- CALLED ON NULL INPUT is implicit.
If the SQL-invoked routine is an SQL-invoked function, then:
- The SQL-invoked routine descriptor includes an indication of whether the SQL-invoked routine
is a null-call function.
4.27 SQL-invoked routines
A null-call function is an SQL-invoked function that is defined to return the null value if any of its input arguments is the null value. A null-call function is an SQL-invoked function whose <null-call clause> specifies
"RETURNS NULL ON NULL INPUT".
| Export Control | PublicAccess | Containment | Unspecified |
| Static | No | Derived | No |
Property Settings
Data Modeler
| dmItem | False | DMName | |
| Ordinal | 0 | IsIdentity | False |
| IsUnique | False | NullsAllowed | False |
| Length | 0 | Scale | 0 |
| ColumnType | Native | ForBitData | False |
| DefaultValueType | | DefaultValue | |
| SourceId | | SourceType | |
| OID | False | | |