(B)0[mget-statement =
[4mGET[m qqwqqqq>qqqqqqqqwqqwq> get-item qqwqqqqq> [4mEND_GET[m qqq>
mq> on-error qj mqqqqq ; <qqqqqqj
(B)0[mget-item =
qqqqwqq> host-var qqqqqqqq> = qqqqq> value-expr qqqqqqqqqqwqqqq>
tqq> record-descr qqqq> = qqqqq> context-var.* qqqqqqqu
mqq> host-var qqqqqqqq> = qqqqq> statistical-expr qqqqj
1 – Format arguments
on-error The ON ERROR clause. Specifies host
language or RDML statement(s) to be
performed if an error occurs during the
GET operation. For more information see
the entry on ON ERROR.
get-item The GET statement includes an assignment
statement specifying a host variable
and a database value. The database
value is assigned to the host variable
from the Oracle Rdb value expression or
statistical expression. Note that the
GET statement must be the last statement
before END_STORE when it is used in a
STORE ... END_STORE block.
host-var A valid variable name declared in the host
program.
value-expr A valid RDML value expression. The value
expression can include the "<context-
variable>.RDB$DB_KEY" expression.
record-descr A valid host language record descriptor
that contains an entry for each field in
the relation. Each field of the record
descriptor must match exactly the field
names and data types of the fields in the
Oracle Rdb relation referenced by the context
variable.
context-var A context variable. A temporary name that
you associate with a relation. You define
a context variable in a relation clause.
For more information see the entry on
Context Variables.
statistical-expr A statistical expression; calculates
values based on a value expression for
every record in the record stream.