Use ADD EXTTRAIL to create a trail for online processing on the local system and:

• Associate it with an Extract group.

• Assign a maximum file size.

See EXTTRAIL in the Reference for Oracle GoldenGate

Syntax

ADD EXTTRAIL trail_name, EXTRACT group_name
[, MEGABYTES n]
[SEQNO n]

trail_name

Oracle GoldenGate appends this name with a nine-digit sequence number whenever a new file is created. For example, a trail named ea would have trail files named ea000000000, ea000000001.

(For Classic Architecture) The relative or fully qualified path name of the trail, including a two character (alpha-numeric) maximum trail name. For example dirdat/ea.

Note:

The trail file name and path (for Classic Architecture) must exactly match the EXTTRAIL parameter used in the Extract.

group_name

The name of the Extract group to which the trail is bound. A trail can only be assigned to one Extract. Multiple Extracts cannot write to the same trail. However, one Extract can write to multiple distinct trails if needed, but this is not normally required.

MEGABYTES n

Valid for Extract. The maximum size, in megabytes, of each trail file in the sequence. The default is 2000.

SEQNO n

Specifies that the first file in the trail will start with the specified trail sequence number. Do not include any zero padding. For example, to start at sequence 3 of a trail named tr, specify SEQNO 3. The actual file would be named /ea000000003. This option can be used during troubleshooting when Replicat needs to be repositioned to a certain trail sequence number. It eliminates the need to alter Replicat to read the required sequence number. The default value is 1.

Examples

GGSCI

ADD EXTTRAIL north/ea, EXTRACT exte