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SQL Anywhere 11.0.1 » SQL Anywhere Server - Programming » SQL Anywhere Data Access APIs » SQL Anywhere for Ruby

 

SQL Anywhere Ruby API

SQL Anywhere provides a low-level interface to the SQL Anywhere C API. The API described in the following sections permits the rapid development of SQL applications. To demonstrate the power of Ruby application development, consider the following sample Ruby program. It loads the SQL Anywhere Ruby extension, connects to the demo database, lists column values from the Products table, disconnects, and terminates.

begin
    require 'rubygems'
    gem 'sqlanywhere'
    unless defined? SQLAnywhere
        require 'sqlanywhere'
    end    
end
api = SQLAnywhere::SQLAnywhereInterface.new()
SQLAnywhere::API.sqlany_initialize_interface( api )
api.sqlany_init()
conn = api.sqlany_new_connection()
api.sqlany_connect( conn, "DSN=SQL Anywhere 11 Demo" )
stmt = api.sqlany_execute_direct( conn, "SELECT * FROM Products" )
num_rows = api.sqlany_num_rows( stmt )
num_rows.times {
    api.sqlany_fetch_next( stmt )
    num_cols = api.sqlany_num_cols( stmt )
    for col in 1..num_cols do
        info = api.sqlany_get_column_info( stmt, col - 1 )
        unless info[3]==1 # Don't do binary
            rc, value = api.sqlany_get_column( stmt, col - 1 )
            print "#{info[2]}=#{value}\n"
        end
    end
    print "\n"
}
api.sqlany_free_stmt( stmt )
api.sqlany_disconnect(conn)
api.sqlany_free_connection(conn)
api.sqlany_fini()
SQLAnywhere::API.sqlany_finalize_interface( api )

The first two rows of the result set output from this Ruby program are shown below:

ID=300
Name=Tee Shirt
Description=Tank Top
Size=Small
Color=White
Quantity=28
UnitPrice=9.00

ID=301
Name=Tee Shirt
Description=V-neck
Size=Medium
Color=Orange
Quantity=54
UnitPrice=14.00

The following sections describe each of the supported functions.


sqlany_affected_rows
sqlany_bind_param
sqlany_clear_error
sqlany_client_version
sqlany_commit
sqlany_connect
sqlany_describe_bind_param
sqlany_disconnect
sqlany_error
sqlany_execute
sqlany_execute_direct
sqlany_execute_immediate
sqlany_fetch_absolute
sqlany_fetch_next
sqlany_fini
sqlany_free_connection
sqlany_free_stmt
sqlany_get_bind_param_info
sqlany_get_column
sqlany_get_column_info
sqlany_get_next_result
sqlany_init
sqlany_new_connection
sqlany_num_cols
sqlany_num_params
sqlany_num_rows
sqlany_prepare
sqlany_rollback
sqlany_sqlstate
Column types
Native column types