DBIConnection-class           package:DBI           R Documentation

_C_l_a_s_s _D_B_I_C_o_n_n_e_c_t_i_o_n

_D_e_s_c_r_i_p_t_i_o_n:

     Base class for all DBMS connection classes.  Individual drivers
     (ODBC, Oracle, PostgreSQL, MySQL, etc.)  extend this class in a
     database-specific manner.

_O_b_j_e_c_t_s _f_r_o_m _t_h_e _C_l_a_s_s:

     A virtual Class: No objects may be created from it.

_E_x_t_e_n_d_s:

     Class '"DBIObject"', directly.

_G_e_n_e_r_a_t_o_r:

     The main generator is 'dbConnect'.

_M_e_t_h_o_d_s:

     The following methods take objects from classes derived from
     'DBIConnection':

          Create and close connections:

     _d_b_C_o_n_n_e_c_t 'signature(drv = "DBIConnection")': ... 

     _d_b_D_i_s_c_o_n_n_e_c_t 'signature(conn = "DBIConnection")': ... 

          Execute SQL commands:

     _d_b_S_e_n_d_Q_u_e_r_y 'signature(conn = "DBIConnection", statement =
          "character")': ... 

     _d_b_G_e_t_Q_u_e_r_y 'signature(conn = "DBIConnection", statement =
          "character")': ... 

     _d_b_C_a_l_l_P_r_o_c 'signature(conn = "DBIConnection")': ... 

          Transaction management:

     _d_b_C_o_m_m_i_t 'signature(conn = "DBIConnection")': ... 

     _d_b_R_o_l_l_b_a_c_k 'signature(conn = "DBIConnection")': ... 

          Meta-data:

     _d_b_L_i_s_t_R_e_s_u_l_t_s 'signature(conn = "DBIConnection")': ... 

     _d_b_G_e_t_I_n_f_o 'signature(dbObj = "DBIConnection")': ... 

     _s_u_m_m_a_r_y 'signature(object = "DBIConnection")': ... 

          Exceptions:

     _d_b_G_e_t_E_x_c_e_p_t_i_o_n 'signature(conn = "DBIConnection")': ... 

     _d_b_L_i_s_t_F_i_e_l_d_s 'signature(conn = "DBIConnection", name =
          "character")': ... 

          Convenience functions:

     _d_b_L_i_s_t_T_a_b_l_e_s 'signature(conn = "DBIConnection")': ... 

     _d_b_R_e_a_d_T_a_b_l_e 'signature(conn = "DBIConnection", name =
          "character")': ... 

     _d_b_E_x_i_s_t_s_T_a_b_l_e 'signature(conn = "DBIConnection", name =
          "character")': ... 

     _d_b_R_e_m_o_v_e_T_a_b_l_e 'signature(conn = "DBIConnection", name =
          "character")': ... 

     _d_b_W_r_i_t_e_T_a_b_l_e 'signature(conn = "DBIConnection", name =
          "character", value = "data.frame")': ... 

_A_u_t_h_o_r(_s):

     R-SIG-DB

_R_e_f_e_r_e_n_c_e_s:

     See the Database Interface definition document 'DBI.pdf' in the
     base directory of this package or <URL:
     http://developer.r-project.org/db>.

_S_e_e _A_l_s_o:

     DBI classes: 'DBIObject-class' 'DBIDriver-class'
     'DBIConnection-class' 'DBIResult-class'

_E_x_a_m_p_l_e_s:

     ## Not run: 
     ora <- dbDriver("Oracle")
     con <- dbConnect(ora, "user/password@dbname")

     pg <- dbDriver("PostgreSQL")
     con <- dbConnect(pg, "user", "password")
     ## End(Not run)

