INSERTINDEX
INSERTINDEX, UPDATEINDEX, and DELETEINDEX are used to maintain the Omnidex
index files, without affecting the data in the database. An application
can control exactly what is stored in the Omnidex index files by separating
the data updates and index updates.
In some OLTP (On-Line Transaction Processing) applications, like retail
sales applications, where data is being added to a database at a nearly
constant rate, it may be more efficient to separate the Omnidex index
updates from the data updates, eliminating the time it takes to update
the indexes from the total transaction time. The index updates can be
performed by a separate process using the INSERTINDEX, UPDATEINDEX, and
DELETEINDEX commands.
ODXAIM is an Omnidex utility that automatically updates the Omnidex indexes
using database triggers. It is the preferred method to perform these types
of updates when using the an RDBMS to host an application. The INSERTINDEX,
UDPATEINDEX, and DELETEINDEX commands are provided for applications that
cannot make use of RDBMS triggers, for instance, flat file database applications.
Syntax
INSERTINDEX INTO table [(column-list)] VALUES (value-list)
ROWID rowid [ON [INSTANCE] instance] [WITH options]
INSERTINDEX INTO
Required.
table
Required. The name of the table as defined in the Omnidex environment
catalog, that the indexes correspond to.
[(column-list)]
Optional. This is a comma-separated list of columns in the table. This
list must contain all MDK columns and all columns that are part of a pseudo-column.
If any of these columns are omitted, an error will occur. The column list
can contain non-MDK columns and can contain a * to include all columns
in the table. Non-MDK columns will simply be ignored.
(value-list)
Required. This is a comma-separated list of values that are to be inserted
into the index files. The number of elements in the value list must match
the number of columns in the column list. Values for non-MDK columns that
were included in the column list, can be blank.
ROWID rowid
Required. This is the ROWID (4-byte integer) of the new record. If the
table uses redefined rowids, this parameter must contain the redefined
rowid value.
[ON [INSTANCE] instance]
Optional. Specify the instance that this command will be executed on.
If omitted, the current instance will be used.
[WITH options]
Optional - Specify options to be used for this command.
Options
Example
Assume a record was inserted with the following SQL INSERT INTO statement:
INSERT INTO CUSTOMERS (COMPANY, CONTACT, STATE) VALUES ('Dynamic
Information Systems Corporation','Dave Smith','CO')
The INSERTINDEX statement would look like the following:
INSERTINDEX INTO CUSTOMERS (COMPANY, CONTACT, STATE) VALUES
('Dynamic Information Systems Corporation','Dave Smith','CO') ROWID 1001
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