MACROMEDIA COLDFUSION 5 - INSTALING AND CONFIGURING SERVER, Руководство пользователя

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Adding Data Sources for ColdFusion 119
Connection Timeout Specify the maximum number of minutes after the database
connection is made that you want ColdFusion to cache a
connection after it is used.
This is different from the server setting to Limit database
connection inactive time, located under Server Settings >
Caching. The latter setting is server wide and only releases
cached connections that have been inactive (not used) for the
specified period of time.
The Connection Timeout setting does not return a connection
to the cache after a specified period of time, regardless of
how infrequently it is used.
The default is "" or 0, which means the connection timeout is
never enforced.
Restrict SQL
Operations to Select SQL operations to restrict for the current data source.
To allow all SQL operations, clear all check boxes. To allow
specific SQL operations, select the check boxes.
Long Text Retrieval
Settings Retrieves all the data for a long text field. If you use this
setting, order the columns in your select statement with the
long text fields referenced last.
ColdFusion retrieves the column with the long text field, and
subsequent columns in the select statement, as unbound
data. Unbound data take longer to retrieve than bound data;
therefore, this setting can affect performance.
Long Text Buffer Size If you do not select the Enable retrieval of long text option,
specifies the maximum number of characters to retrieve from
a long text field is not set. In this case, ColdFusion binds text
columns to a buffer whose size you specify in this field. If you
specify a size that is not supported by your database, a SQL
execution error occurs when you try to retrieve the data.
If you select the Enable retrieval of long text option, this is the
buffer size ColdFusion uses to retrieve the unbound text
column until all data is returned.
Connection String Use this setting to pass driver-specific connection attributes
for ODBC data sources. You can:
•
Specify connection attributes that cannot be defined in the
odbc.ini settings
•
Override odbc.ini settings
•
Make ODBC connections dynamically when there is no
data source defined in the odbc.ini settings
Setting Description
install.book Page 119 Thursday, May 10, 2001 12:59 PM