我有一个运行多个查询的脚本;因此，每次调用“Open Database（）”命令时，我的客户都必须选择DSN。所以我写了一个函数来解决这个问题。当用户选择DSN字符串时，它会拦截DSN字符串，并将其保存到变量中。然后我的脚本可以在以后访问DSN而无需用户重新选择。
/*
Function
to intercept user's DSN
selection through ODBC interface for database queries.
This is useful for scripts that
run Open Database() multiple times on the same database.
Opens user's Windows ODBC to allow them to select a DSN.
Returns the DSN string to query the database. If fail, it pops up
a window indicating the error, and returns empty string.
Arguments:
_test_query_:
A very simple query that will return a SQL error if
user
selected wrong DSN. It
will return a
results table if there is no error.
_database_:
The name of the database for the error window.
Local
Variables:
_DSN_test_:
temporary table that will contain the table variable with DSN
_DSN_string_:
string extracted from Database query results Table Variable "JSL"
Example
usage:
DSN_setup("SELECT
TOP 1 * FROM dbo.Dim_DiePV","NSGTestDW");
*/
::DSN_setup = Function(
//Arguments
{_test_query_, _database_},
//Locals
{_DSN_test_, _DSN_string_},
_DSN_test_ =
Open Database( , _test_query_ );
If( Char( _DSN_test_ ) == ".",
New Window( "Script Error",
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