Mettre en relation deux tables

Question toute bête mais par quels éléments puis-je relier ces 2 tables suivantes ?

Code:

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CREATE TABLE sortie_lig_transfert (
 clé primaire sltrsf_code        CHAR(6)     NOT NULL,
 clé primaire sltrsf_nibla       NUMBER(6,0) NOT NULL,
 clé primaire sltrsf_nlig        NUMBER(4,0) NOT NULL,
  sltrsf_code_intp   CHAR(8)      NULL,
  sltrsf_libelle1    CHAR(30)     NULL,
  sltrsf_libelle2    CHAR(20)     NULL,
  sltrsf_fourn       CHAR(3)      NULL,
  sltrsf_ref         CHAR(15)     NULL,
  sltrsf_tva         NUMBER(1,0)  NULL,
  sltrsf_deps        NUMBER(2,0)  NULL,
  sltrsf_depe        NUMBER(2,0)  NULL,
  sltrsf_unitv       CHAR(2)      NULL,
  sltrsf_code_fam    NUMBER(2,0)  NULL,
  sltrsf_ssfam       NUMBER(2,0)  NULL,
  sltrsf_dim_note    CHAR(25)     NULL,
  sltrsf_gencod      CHAR(18)     NULL,
  sltrsf_nbre        NUMBER(10,3) NULL,
  sltrsf_longueur    NUMBER(8,3)  NULL,
  sltrsf_largeur     NUMBER(6,3)  NULL,
  sltrsf_epaisseur   NUMBER(8,4)  NULL,
  sltrsf_qte         NUMBER(11,3) NULL,
  sltrsf_pubht       NUMBER(9,2)  NULL,
  sltrsf_mont_lig_ht NUMBER(10,2) NULL,
  sltrsf_datl        DATE         NULL,
  sltrsf_nocc        NUMBER(9,0)  NULL,
  sltrsf_nolig_cde   NUMBER(4,0)  NULL,
  sltrsf_pdiv        CHAR(1)      NULL,
  sltrsf_term        CHAR(1)      NULL,
  sltrsf_qtes        NUMBER(11,3) NULL,
  sltrsf_glint       NUMBER(8,0)  NULL
)

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CREATE TABLE stocks (
 clé primaire stoc_code_intart  NUMBER(8,0)  NOT NULL,
 clé primaire stoc_code_dep     NUMBER(2,0)  NOT NULL,
  stoc_dern_mouv    CHAR(8)      NULL,
  stoc_date_repinvt DATE         NULL,
  stoc_dqte         NUMBER(12,3) NULL,
  stoc_achats_qte   NUMBER(12,3) NULL,
  stoc_enttrsft_qte NUMBER(12,3) NULL,
  stoc_vqte         NUMBER(12,3) NULL,
  stoc_sorttqte     NUMBER(12,3) NULL,
  stoc_mvtsdivqte   NUMBER(12,3) NULL,
  stoc_pqte         NUMBER(12,3) NULL,
  stoc_cdeclt       NUMBER(12,3) NULL,
  stoc_cdefrs       NUMBER(12,3) NULL,
  stoc_theor        NUMBER(12,3) NULL,
  stoc_vsd          NUMBER(12,2) NULL,
  stoc_va           NUMBER(12,2) NULL,
  stoc_vv           NUMBER(12,2) NULL,
  stoc_vmvtsdiv     NUMBER(12,2) NULL,
  stoc_dernpa       NUMBER(9,2)  NULL,
  stoc_pxms         NUMBER(9,2)  NULL,
  stoc_creele       DATE         NULL,
  stoc_creepar      CHAR(4)      NULL,
  stoc_majle        DATE         NULL,
  stoc_majpar       CHAR(4)      NULL,
  stoc_code_rayp    CHAR(8)      NULL,
  stoc_sminqte      NUMBER(10,2) NULL,
  stoc_smaxqte      NUMBER(10,2) NULL,
  stoc_code_raysec  CHAR(8)      NULL,
  stoc_entfabqte    NUMBER(12,3) NULL,
  stoc_sortfabqte   NUMBER(12,3) NULL,
  stoc_cdefabcomp   NUMBER(12,3) NULL,
  stoc_cdefabpf     NUMBER(12,3) NULL,
  stoc_valentfab    NUMBER(12,2) NULL,
  stoc_rattent      NUMBER(10,3) NULL,
  stoc_rattsort     NUMBER(10,3) NULL,
  stoc_disp         NUMBER(12,3) NULL
)