JDBC Type 4 Driver 2.0 Programmer's Reference (SQL/MX 2.x)
description Property
The description property specifies the registered source name.
Set this property on a DataSource object, ConnectionPoolDataSource object, or
DriverManager object. For information about how to set properties, see How to Specify JDBC Type
4 Properties.
Data type: String
Default: none
The value can be any valid identifier.
initialPoolSize Property
The initialPoolSize property sets the initial connection pool size when connection pooling is used
with the Type 4 driver.
Set this property on a DataSource object or DriverManager object. This property is ignored for
connections made through the ConnectionPoolDataSource object, For information about how to
set the property value, see How to Specify JDBC Type 4 Properties.
The driver creates n connections (where n is initialPoolSize) for each connection pool when the
first connetion is requested. For example, if initialPoolSize is set to 5 for a data source, the driver
attempts to create and pool five connections the first time the application calls the data source’s
getConnection() method.
Data type: int
Units: number of physical connections
Default: -1 (Do not create an initial connection pool.)
Range: -1 to maxPoolSize
Any negative value is treated as -1.
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Values can be less than minPoolSize, but must not exceed maxPoolSize. If the specified
value is greater than maxPoolSize, the maxPoolSize property value is used.
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For example: initialPoolSize=10
ISO88591 Property
The ISO88591 character-set mapping property corresponds to the SQL/MX ISO88591 character set,
which is a single- byte 8-bit character set for character data types. This property supports English and
other Western European languages. For more information, see Internationalization (I18N) Support.
Set this property on a DataSource object, ConnectionPoolDataSource object, or










