sql:connect
Creates a database connection.
Attributes
|
|
The name of the JDBC driver class to be used. |
|
|
The name of the database. Must be a name that JDBC can associate with an actual database. |
|
|
|
|
|
|
|
|
If the value is |
Details
The sql:connect
instruction returns a database connection as a value,
specifically a value of type "external object", which can be referred to using the
type java:java.sql.Connection
. Typically the value will be assigned
to a variable using the construct:
This can be a global variable or a local variable; if local, it can be passed to
other templates as a parameter in the normal way. The connection is used on
instructions such as sql:insert and
sql:query with an attribute such
as connection="$connection"
; the value of the connection
attribute is an expression that returns a database connection object.