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LOAD
LOAD
The LOAD; command applies to the Fast Database Load feature on OS 2200 based hosts
only.
When you create a Report to run a Fast Load, use the LOAD; command to define how the
format of your external input file relates to the Ispec into which you are loading your data.
The Ispec item name is validated to ensure that it is an I/O or Output item. There is no
validation on the edit type of the input. Loading will occur unless it is rejected by the
RDMUTL utility.
Considerations for Using the LOAD; Command
The following restrictions should be noted in regard to your LOAD; data items:
$ You must include a LOAD; command for each field of your input file, and associate it
with the appropriate data item in your target Ispec. For fields that are not to be loaded,
code the LOAD; command with the length but no data item, which specifies that the
field is a filler.
$ LOAD; commands must be in the sequence of the fields on your input file. Each data
item in your Ispec can be loaded only from a single field defined with the LOAD;
command. Checks are performed to ensure that no duplicates exist.
$ The data item can be a System Data item such as GLB-DTIME, MAINT, or ACTMTH.
GLB-DTIME should be unique across all records in your Ispec.
$ The current or a future load may fail, or a future reorganization may fail if you load a
field into records that may not be unique. If the definition does not include a field to be
loaded into GLB-DTIME, then the load process will append a unique GLB-DTIME field
to each record of the input file. This will involve preprocessing the file, and appending
values to the end of each record from where GLB-DTIME will be loaded.
$ Not every data item in your Ispec needs to be related to the input file. If your input
contains fields that are not be loaded, you should write a space/zero as the first two
bytes of the record when creating the input file. When you define the Fast Load options
for your Report, set the Space/Zero leads each Record field to Y. If you want to
assign a constant value to a field, you must do this at the time of creating the input file.
This load process cannot assign constant values other than spaces or zeros to fields.
$ The loading of numerics is right-aligned. Consult your Relational Data Management
System (RDMS 2200) Administration Guide for a description of how to prepare a file
for loading, and the particular requirements of the file, especially where numeric fields
are to be loaded.
$ When an alphanumeric item is longer than the data item into which it is being loaded,
the value of the item will be truncated from the right.
$ When a numeric item is longer than the data item into which it is being loaded, no
truncation occurs. This is because RDMSLOAD accepts a wide variety of lengths for
numeric fields. You must ensure that your numerics fit the size specified in the
definition of the Ispec being loaded.
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