ファイル検索ユーティリティー Ｆile Scan Utility から、同じ フィルター･セット Filter Set を使ってでスキャン開始を命令すると、次のような警告ウインドウが表われます。
Scan
options if a scan table already exists
When
selecting to scan files from the File Scan Utility, output from the scan typically
gets saved to a Scan Database table whose name is the same as the
hosted Filter Set.
For instance, if you request a scan that utilizes filter "BAOPT",
Insider TA will want to write the scan output to a scan database also
named "BAOPT".
If the scan database already exists, then Insider TA will present
you with the following options before the scan commences:
Overwrite
the table
The table is deleted, then recreated from scratch.
Add-to / Refresh the table The table is not deleted. Instead, it
is refreshed
if newer stock data is made available.
Redirect to a unique name A unique table name will be chosen by Insider
TA. It simply takes the hosted filter name, and appends a numeral to make
it unique. For instance, "BAOPT" will be turned into "BAOPT1",
"BAOPT2", "BAOPT3", and so on.
Table structure must
be "current"
The Add-to/Refresh
option requires that the targeted Scan Database Table have a
compatible structure.
Insider TA's Scan Database Tables comprise a specific database structure.
By this, we mean the various columns that hold the data. For instance,
Symbol, Date, Midpoint, UV/DV,
BA, VA Rank, and so on.
When selecting the Add-to/Refresh option, Insider TA makes sure that
the table to be refreshed has the same structure as what Insider TA is programmed
to work with.
In time, future versions of the software may improve on the Scan Database
Table contents. When this occurs, those originating from previous software
versions can not be updated with the Add-to/Refresh option.
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