ORAEXT OCINumber * oraConfigGetFloat (OCIExtProcContext *ctx, int context_id, 
                                      char *key_name, short key_name_indicator, 
                                      short *return_indicator)
{
   OCINumber *result = NULL;

   ORABLOCK_BEGIN
   {
      *return_indicator = OCI_IND_NULL;

      OracleEnv env(ctx, logger);

      if (key_name_indicator != OCI_IND_NOTNULL)
         throw BingoError("Null key is given");

      float value;
      BingoOracleContext &context = BingoOracleContext::get(env, context_id, false, 0);
      if (!context.configGetFloat(env, key_name, value))
         throw BingoError("Key wasn't found");

      result = (OCINumber *)OCIExtProcAllocCallMemory(ctx, sizeof(OCINumber));

      if (result == NULL)
         throw BingoError("can't allocate memory for number");

      double value_double = value;
      env.callOCI(OCINumberFromReal(env.errhp(), &value_double, sizeof(value_double), result));

      *return_indicator = OCI_IND_NOTNULL;
   }
   ORABLOCK_END

   return result;
}
Esempio n. 2
0
/* ODCIIndexClose function */
OCINumber *qxiqtbspc(
OCIExtProcContext *ctx,
qxiqtim           *self,
qxiqtin           *self_ind,
ODCIEnv           *env,
ODCIEnv_ind       *env_ind)
{
  sword status;
  OCIEnv *envhp = (OCIEnv *) 0;                               /* env. handle */
  OCISvcCtx *svchp = (OCISvcCtx *) 0;                      /* service handle */
  OCIError *errhp = (OCIError *) 0;                          /* error handle */
  OCISession *usrhp = (OCISession *) 0;                       /* user handle */
  qxiqtcx *icx = (qxiqtcx *) 0;         /* state to be saved for later calls */

  int retval = (int) ODCI_SUCCESS;
  OCINumber *rval = (OCINumber *)0;

  ub1 *key;                                   /* key to retrieve context */
  ub4 keylen;                                 /* length of key */

  if (qxiqtce(ctx, errhp, OCIExtProcGetEnv(ctx, &envhp, &svchp, &errhp)))
      return(rval);

  /* set up return code */
  rval = (OCINumber *)OCIExtProcAllocCallMemory(ctx, sizeof(OCINumber));
  if (qxiqtce(ctx, errhp, OCINumberFromInt(errhp, (dvoid *)&retval,
                                           sizeof(retval),
                                           OCI_NUMBER_SIGNED, rval)))
    return(rval);

  /* get the user handle */
  if (qxiqtce(ctx, errhp, OCIAttrGet((dvoid *)svchp, (ub4)OCI_HTYPE_SVCCTX,
                                     (dvoid *)&usrhp, (ub4 *)0,
                                     (ub4)OCI_ATTR_SESSION, errhp)))
    return(rval);

  /********************************/
  /* Retrieve context using key   */
  /********************************/
  key = OCIRawPtr(envhp, self->sctx_qxiqtim);
  keylen = OCIRawSize(envhp, self->sctx_qxiqtim);

  if (qxiqtce(ctx, errhp, OCIContextGetValue((dvoid *)usrhp, errhp,
                                             key, (ub1)keylen,
                                             (dvoid **)&(icx))))
    return(rval);

  /* Free handles and memory */
  if (qxiqtce(ctx, errhp, OCIHandleFree((dvoid *)icx->stmthp,
                                        (ub4)OCI_HTYPE_STMT)))
    return(rval);

  if (qxiqtce(ctx, errhp, OCIMemoryFree((dvoid *)usrhp, errhp, (dvoid *)icx)))
    return(rval);

  return(rval);
}
Esempio n. 3
0
ORAEXT OCINumber * oraProfilingGetTime (OCIExtProcContext *ctx, char *key_name, short key_name_indicator, 
                                       short *return_indicator)
{
   OCINumber *result = NULL;

   ORABLOCK_BEGIN
   {
      *return_indicator = OCI_IND_NULL;

      OracleEnv env(ctx, logger);

      if (key_name_indicator != OCI_IND_NOTNULL)
         throw BingoError("Null key is given");

      float value;

      // Try to find in profiling data
      ProfilingSystem &inst = ProfilingSystem::getInstance();
      if (inst.hasLabel(key_name))
         //throw BingoError("Key wasn't found");
         value = inst.getLabelExecTime(key_name);
      else
         value = 0;

      result = (OCINumber *)OCIExtProcAllocCallMemory(ctx, sizeof(OCINumber));

      if (result == NULL)
         throw BingoError("can't allocate memory for number");

      double value_double = value;
      env.callOCI(OCINumberFromReal(env.errhp(), &value_double, sizeof(value_double), result));

      *return_indicator = OCI_IND_NOTNULL;
   }
   ORABLOCK_END

   return result;
}
Esempio n. 4
0
/* ODCIIndexFetch function */
OCINumber *qxiqtbspf(
OCIExtProcContext *ctx,
qxiqtim           *self,
qxiqtin           *self_ind,
OCINumber         *nrows,
short             nrows_ind,
OCIArray          **rids,
short             *rids_ind,
ODCIEnv           *env,
ODCIEnv_ind       *env_ind)
{
  sword status;
  OCIEnv *envhp = (OCIEnv *) 0;                               /* env. handle */
  OCISvcCtx *svchp = (OCISvcCtx *) 0;                      /* service handle */
  OCIError *errhp = (OCIError *) 0;                          /* error handle */
  OCISession *usrhp = (OCISession *) 0;                       /* user handle */
  qxiqtcx *icx = (qxiqtcx *) 0;         /* state to be saved for later calls */

  int idx = 1;
  int nrowsval;

  OCIArray *ridarrp = *rids;                  /* rowid collection */
  OCIString *ridstr = (OCIString *)0;

  int done = 0;
  int retval = (int)ODCI_SUCCESS;
  OCINumber *rval = (OCINumber *)0;

  ub1 *key;                                   /* key to retrieve context */
  ub4 keylen;                                 /* length of key */

  /*******************/
  /* Get OCI handles */
  /*******************/
  if (qxiqtce(ctx, errhp, OCIExtProcGetEnv(ctx, &envhp, &svchp, &errhp)))
      return(rval);

  /* set up return code */
  rval = (OCINumber *)OCIExtProcAllocCallMemory(ctx, sizeof(OCINumber));
  if (qxiqtce(ctx, errhp,
              OCINumberFromInt(errhp, (dvoid *)&retval, sizeof(retval),
                                           OCI_NUMBER_SIGNED, rval)))
    return(rval);

  /* get the user handle */
  if (qxiqtce(ctx, errhp, OCIAttrGet((dvoid *)svchp, (ub4)OCI_HTYPE_SVCCTX,
                                     (dvoid *)&usrhp, (ub4 *)0,
                                     (ub4)OCI_ATTR_SESSION, errhp)))
    return(rval);

  /********************************/
  /* Retrieve context from key    */
  /********************************/
  key = OCIRawPtr(envhp, self->sctx_qxiqtim);
  keylen = OCIRawSize(envhp, self->sctx_qxiqtim);

  if (qxiqtce(ctx, errhp, OCIContextGetValue((dvoid *)usrhp, errhp,
                                             key, (ub1)keylen,
                                             (dvoid **)&(icx))))
    return(rval);

  /* get value of nrows */
  if (qxiqtce(ctx, errhp, OCINumberToInt(errhp, nrows, 
                                         sizeof(nrowsval),
                                         OCI_NUMBER_SIGNED, 
                                         (dvoid *)&nrowsval)))
    return(rval);

  /****************/
  /* Fetch rowids */
  /****************/
  while (!done)
  {
    if (idx > nrowsval)
      done = 1;
    else
    {
      status = OCIStmtFetch(icx->stmthp, errhp, (ub4)1, (ub2) 0,
                            (ub4)OCI_DEFAULT);
      if (status == OCI_NO_DATA)
      {
        short col_ind = OCI_IND_NULL;
        /* have to create dummy oci string */
        OCIStringAssignText(envhp, errhp, (text *)"dummy",
                            (ub2)5, &ridstr);
        /* append null element to collection */
        if (qxiqtce(ctx, errhp, OCICollAppend(envhp, errhp,
                                              (dvoid *)ridstr,
                                              (dvoid *)&col_ind,
                                              (OCIColl *)ridarrp)))
          return(rval);
        done = 1;
      }
      else if (status == OCI_SUCCESS)
      {
        OCIStringAssignText(envhp, errhp, (text *)icx->ridp,
                            (ub2)18, (OCIString **)&ridstr);
        /* append rowid to collection */
        if (qxiqtce(ctx, errhp, OCICollAppend(envhp, errhp, 
                                              (dvoid *)ridstr,
                                              (dvoid *)0, 
                                              (OCIColl *)ridarrp)))
          return(rval);
        idx++;
      }
      else if (qxiqtce(ctx, errhp, status))
        return(rval);
    }
  }

  /* free ridstr finally */
  if (ridstr &&
      (qxiqtce(ctx, errhp, OCIStringResize(envhp, errhp, (ub4)0,
                                           &ridstr))))
    return(rval);

  *rids_ind = OCI_IND_NOTNULL;

  return(rval);
}
Esempio n. 5
0
/* ODCIIndexInsert function */
OCINumber *qxiqtbspi(
OCIExtProcContext *ctx,
ODCIIndexInfo     *ix,
ODCIIndexInfo_ind *ix_ind,
char              *rid,
short             rid_ind,
char              *newval,
short             newval_ind,
ODCIEnv           *env,
ODCIEnv_ind       *env_ind)
{
  OCIEnv *envhp = (OCIEnv *) 0;             /* env. handle */
  OCISvcCtx *svchp = (OCISvcCtx *) 0;       /* service handle */
  OCIError *errhp = (OCIError *) 0;         /* error handle */
  OCIStmt *stmthp = (OCIStmt *) 0;          /* statement handle */
  OCIBind *bndp = (OCIBind *) 0;            /* bind handle */

  int retval = (int)ODCI_SUCCESS;           /* return from this function */
  OCINumber *rval = (OCINumber *)0;
  
  char insstmt[2000];                       /* sql insert statement */
  ODCIColInfo  *colinfo;                    /* column info */
  ODCIColInfo_ind  *colinfo_ind;
  boolean exists = TRUE;
  int partiden;                             /* table partition iden */ 


  /* allocate memory for OCINumber first */
  rval = (OCINumber *)OCIExtProcAllocCallMemory(ctx, sizeof(OCINumber));

  /* Get oci handles */
  if (qxiqtce(ctx, errhp, OCIExtProcGetEnv(ctx, &envhp, &svchp, &errhp)))
    return(rval);

  /* set up return code */
  if (qxiqtce(ctx, errhp, OCINumberFromInt(errhp, (dvoid *)&retval,
                                           sizeof(retval),
                                           OCI_NUMBER_SIGNED, rval)))
    return(rval);

  /******************************
   * Construct insert Statement *
   ******************************/
  if ( ix_ind->IndexPartitionIden == OCI_IND_NULL )
    (void)sprintf(insstmt,
                  "INSERT into %s.%s_sbtree values (:newval, :mrid)",
                  OCIStringPtr(envhp, ix->IndexSchema),
                  OCIStringPtr(envhp, ix->IndexName));
  else
  {
    if (qxiqtce(ctx, errhp, OCICollGetElem(envhp, errhp,
                           (OCIColl *)ix->IndexCols, (sb4)0, &exists, 
                           (void **) &colinfo, (void **) &colinfo_ind)))
      return(rval);

    (void)sprintf(insstmt,
                  "INSERT into %s.%s_sbtree partition (DATAOBJ_TO_PARTITION(%s, :partiden)) values (:newval, :mrid)",
                  OCIStringPtr(envhp, ix->IndexSchema),
                  OCIStringPtr(envhp, ix->IndexName),
                  OCIStringPtr(envhp, colinfo->TableName));
  }

  /****************************************
   * Parse and Execute Create Statement   *
   ****************************************/

  /* allocate stmt handle */
  if (qxiqtce(ctx, errhp, OCIHandleAlloc((dvoid *)envhp,
                                         (dvoid **)&stmthp,
                                         (ub4)OCI_HTYPE_STMT, (size_t)0,
                                         (dvoid **)0)))
    return(rval);

  /* prepare the statement */
  if (qxiqtce(ctx, errhp, OCIStmtPrepare(stmthp, errhp, 
                                         (text *)insstmt,
                                         (ub4)strlen(insstmt), 
                                         OCI_NTV_SYNTAX,
                                         OCI_DEFAULT)))
    return(rval);

  if (ix_ind->IndexPartitionIden != OCI_IND_NULL)
  {
    /* Convert partiden to integer from OCINumber */
    if (qxiqtce(ctx, errhp, OCINumberToInt(errhp, 
                                           &(colinfo->TablePartitionIden),
                                           sizeof(partiden),
                                           OCI_NUMBER_SIGNED,
                                           ( void *)&partiden)))
      return(rval);

    /* Set up bind for partiden */
    if (qxiqtce(ctx, errhp, OCIBindByName(stmthp, &bndp, errhp, 
                                          (text *)":partiden",
                                          sizeof(":partiden")-1,
                                          (dvoid *)&partiden,
                                          (sb4)(sizeof(partiden)),
                                          (ub2)SQLT_INT, 
                                          (dvoid *)0, (ub2 *)0,
                                          (ub2 *)0, (ub4)0, (ub4 *)0,
                                          (ub4)OCI_DEFAULT)))
      return(rval);
  }

  /* Set up bind for newval */
  if (qxiqtce(ctx, errhp, OCIBindByName(stmthp, &bndp, errhp, 
                                        (text *)":newval",
                                        sizeof(":newval")-1,
                                        (dvoid *)newval,
                                        (sb4)(strlen(newval)+1),
                                        (ub2)SQLT_STR, 
                                        (dvoid *)0, (ub2 *)0,
                                        (ub2 *)0, (ub4)0, (ub4 *)0,
                                        (ub4)OCI_DEFAULT)))
    return(rval);

  /* Set up bind for rid */
  if (qxiqtce(ctx, errhp, OCIBindByName(stmthp, &bndp, errhp,  
                                        (text *)":mrid",
                                        sizeof(":mrid")-1,
                                        (dvoid *)rid,
                                        (sb4)(strlen(rid)+1),
                                        (ub2)SQLT_STR, 
                                        (dvoid *)0, (ub2 *)0,
                                        (ub2 *)0, (ub4)0, (ub4 *)0,
                                        (ub4)OCI_DEFAULT)))
    return(rval);

  /* Execute statement */
  if (qxiqtce(ctx, errhp, OCIStmtExecute(svchp, stmthp, errhp, (ub4)1,
                                         (ub4)0, (OCISnapshot *)NULL,
                                         (OCISnapshot *)NULL,
                                         (ub4)OCI_DEFAULT)))
    return(rval);

  /* free stmt handle */
  if (qxiqtce(ctx, errhp, OCIHandleFree((dvoid *)stmthp,
                                        (ub4)OCI_HTYPE_STMT)))
    return(rval);

  return(rval);
}
Esempio n. 6
0
/* ODCIIndexStart function */
OCINumber *qxiqtbsps(
OCIExtProcContext *ctx,
qxiqtim           *sctx,
qxiqtin           *sctx_ind,
ODCIIndexInfo     *ix,
ODCIIndexInfo_ind *ix_ind,
ODCIPredInfo      *pr,
ODCIPredInfo_ind  *pr_ind,
ODCIQueryInfo     *qy,
ODCIQueryInfo_ind *qy_ind,
OCINumber         *strt,
short             strt_ind,
OCINumber         *stop,
short             stop_ind,
char              *cmpval,
short             cmpval_ind,
ODCIEnv           *env,
ODCIEnv_ind       *env_ind)
{
  sword status;
  OCIEnv *envhp = (OCIEnv *) 0;                               /* env. handle */
  OCISvcCtx *svchp = (OCISvcCtx *) 0;                      /* service handle */
  OCIError *errhp = (OCIError *) 0;                          /* error handle */
  OCISession *usrhp = (OCISession *) 0;                       /* user handle */
  qxiqtcx *icx = (qxiqtcx *) 0;         /* state to be saved for later calls */

  int strtval;                   /* start bound */
  int stopval;                   /* stop bound */

  int errnum = 29400;            /* choose some oracle error number */
  char errmsg[512];              /* error message buffer */
  size_t errmsglen;              /* Length of error message */

  char relop[3];                 /* relational operator used in sql stmt */
  char selstmt[2000];            /* sql select statement */

  int retval = (int)ODCI_SUCCESS;       /* return from this function */
  OCINumber *rval = (OCINumber *)0;
  ub4 key;                              /* key value set in "sctx" */

  ub1 *rkey;                            /* key to retrieve context */
  ub4 rkeylen;                          /* length of key */
  ODCIColInfo  *colinfo;                /* column info */
  ODCIColInfo_ind  *colinfo_ind;
  boolean exists = TRUE;
  int partiden;                         /* table partition iden */ 

  /* Get oci handles */
  if (qxiqtce(ctx, errhp, OCIExtProcGetEnv(ctx, &envhp, &svchp, &errhp)))
    return(rval);

  /* set up return code */
  rval = (OCINumber *)OCIExtProcAllocCallMemory(ctx, sizeof(OCINumber));
  if (qxiqtce(ctx, errhp, OCINumberFromInt(errhp, (dvoid *)&retval,
                                           sizeof(retval),
                                           OCI_NUMBER_SIGNED, rval)))
    return(rval);

  /* get the user handle */
  if (qxiqtce(ctx, errhp, OCIAttrGet((dvoid *)svchp, (ub4)OCI_HTYPE_SVCCTX,
                                     (dvoid *)&usrhp, (ub4 *)0,
                                     (ub4)OCI_ATTR_SESSION,
                                     errhp)))
    return(rval);

  /**********************************************/
  /* Allocate memory to hold index scan context */
  /**********************************************/
  if (sctx_ind ->atomic_qxiqtin == OCI_IND_NULL ||
      sctx_ind ->scind_qxiqtin == OCI_IND_NULL)
  {
   if (qxiqtce(ctx, errhp, OCIMemoryAlloc((dvoid *)usrhp, errhp,
                                          (dvoid **)&icx,
                                          OCI_DURATION_STATEMENT,
                                          (ub4)(sizeof(qxiqtcx)),
                                          OCI_MEMORY_CLEARED)))
     return(rval);

   icx->stmthp = (OCIStmt *)0;
   icx->defnp = (OCIDefine *)0;
   icx->bndp = (OCIBind *)0;
  }
  else
  {
   /*************************/
   /* Retrieve scan context */
   /*************************/
   rkey = OCIRawPtr(envhp, sctx->sctx_qxiqtim);
   rkeylen = OCIRawSize(envhp, sctx->sctx_qxiqtim);

   if (qxiqtce(ctx, errhp, OCIContextGetValue((dvoid *)usrhp, errhp,
                                              rkey, (ub1)rkeylen,
                                              (dvoid **)&(icx))))
    return(rval);
  }

  /***********************************/
  /* Check that the bounds are valid */
  /***********************************/
  /* convert from oci numbers to native numbers */
  if (qxiqtce(ctx, errhp, OCINumberToInt(errhp, strt,
                                         sizeof(strtval), 
                                         OCI_NUMBER_SIGNED,
                                         (dvoid *)&strtval)))
    return(rval);

  if (qxiqtce(ctx, errhp, OCINumberToInt(errhp, stop,
                                        sizeof(stopval),
                                        OCI_NUMBER_SIGNED, 
                                        (dvoid *)&stopval)))
    return(rval);

  /* verify that strtval/stopval are both either 0 or 1 */
  if (!(((strtval == 0) && (stopval == 0)) ||
        ((strtval == 1) && (stopval == 1))))
    {
      strcpy(errmsg, (char *)"Incorrect predicate for sbtree operator");
      errmsglen = (size_t)strlen(errmsg);
      if (OCIExtProcRaiseExcpWithMsg(ctx, errnum, (text *)errmsg, errmsglen)
          != OCIEXTPROC_SUCCESS)
        /* Use cartridge error services here */;
      return(rval);
    }

  /*********************************************/
  /* Generate the SQL statement to be executed */
  /*********************************************/
  if (memcmp((dvoid *)OCIStringPtr(envhp, pr->ObjectName), (dvoid *)"EQ", 2)
      == 0)
    if (strtval == 1)
      strcpy(relop, (char *)"=");
    else
      strcpy(relop, (char *)"!=");
  else if (memcmp((dvoid *)OCIStringPtr(envhp, pr->ObjectName), (dvoid *)"LT",
                  2) == 0)
    if (strtval == 1)
      strcpy(relop, (char *)"<");
    else
      strcpy(relop, (char *)">=");
  else
    if (strtval == 1)
      strcpy(relop, (char *)">");
    else
      strcpy(relop, (char *)"<=");

  if (ix_ind->IndexPartitionIden == OCI_IND_NULL)
    (void)sprintf(selstmt, "select f2 from %s.%s_sbtree where f1 %s :val",
                  OCIStringPtr(envhp, ix->IndexSchema),
                  OCIStringPtr(envhp, ix->IndexName), relop);
  else
  {
    
    if (qxiqtce(ctx, errhp, OCICollGetElem(envhp, errhp,
                           (OCIColl *)ix->IndexCols, (sb4)0, &exists, 
                           (void **) &colinfo, (void **) &colinfo_ind)))
      return(rval);
    (void)sprintf(selstmt, "select f2 from %s.%s_sbtree partition (DATAOBJ_TO_PARTITION(%s, :partiden)) where f1 %s :val",
                  OCIStringPtr(envhp, ix->IndexSchema),
                  OCIStringPtr(envhp, ix->IndexName),
                   OCIStringPtr(envhp, colinfo->TableName), relop);
  }

  /***********************************/
  /* Parse, bind, define and execute */
  /***********************************/
  if (sctx_ind ->atomic_qxiqtin == OCI_IND_NULL ||
      sctx_ind ->scind_qxiqtin == OCI_IND_NULL)
  {
    /* allocate stmt handle */
    if (qxiqtce(ctx, errhp, OCIHandleAlloc((dvoid *)envhp,  
                                           (dvoid **)&(icx->stmthp),
                                           (ub4)OCI_HTYPE_STMT, 
                                           (size_t)0, (dvoid **)0)))  
      return(rval);
  }

  /* prepare the statement */
  if (qxiqtce(ctx, errhp, OCIStmtPrepare(icx->stmthp, errhp, 
                                         (text *)selstmt,
                                         (ub4)strlen(selstmt), 
                                         OCI_NTV_SYNTAX,
                                          OCI_DEFAULT)))
    return(rval);


  if (ix_ind->IndexPartitionIden != OCI_IND_NULL)
  {
    /* Convert partiden to integer from OCINumber */
    if (qxiqtce(ctx, errhp, OCINumberToInt(errhp, 
                                           &(colinfo->TablePartitionIden),
                                           sizeof(partiden),
                                           OCI_NUMBER_SIGNED,
                                           ( void *)&partiden)))
      return(rval);

    /* Set up bind for partiden */
    if (qxiqtce(ctx, errhp, OCIBindByName(icx->stmthp, &(icx->bndp), errhp, 
                                          (text *)":partiden",
                                          sizeof(":partiden")-1,
                                          (dvoid *)&partiden,
                                          (sb4)(sizeof(partiden)),
                                          (ub2)SQLT_INT, 
                                          (dvoid *)0, (ub2 *)0,
                                          (ub2 *)0, (ub4)0, (ub4 *)0,
                                          (ub4)OCI_DEFAULT)))
      return(rval);
  }

  /* Set up bind for compare value */
  if (qxiqtce(ctx, errhp, OCIBindByName(icx->stmthp, &(icx->bndp),errhp, 
                                        (text *)":val",
                                        sizeof(":val")-1,
                                       (dvoid *)cmpval,
                                       (sb4)(strlen(cmpval)+1),
                                       (ub2)SQLT_STR, 
                                       (dvoid *)0, (ub2 *)0,
                                       (ub2 *)0, (ub4)0, (ub4 *)0,
                                       (ub4)OCI_DEFAULT)))
    return(rval);

  /* Set up define */
  if (qxiqtce(ctx, errhp, OCIDefineByPos(icx->stmthp, &(icx->defnp), 
                                         errhp, (ub4)1,  
                                         (dvoid *)(icx->ridp),
                                         (sb4) sizeof(icx->ridp),
                                         (ub2)SQLT_STR, 
                                         (dvoid *)0, (ub2 *)0,
                                         (ub2 *)0, (ub4)OCI_DEFAULT)))
    return(rval);

  /* execute */
  if (qxiqtce(ctx, errhp, OCIStmtExecute(svchp, icx->stmthp, 
                                         errhp, (ub4)0,
                                         (ub4)0, (OCISnapshot *)NULL,
                                         (OCISnapshot *)NULL,
                                         (ub4)OCI_DEFAULT)))
    return(rval);

  /************************************/
  /* Set index context to be returned */
  /************************************/
  if (sctx_ind ->atomic_qxiqtin == OCI_IND_NULL ||
      sctx_ind ->scind_qxiqtin == OCI_IND_NULL)
   {
    /* generate a key */
    if (qxiqtce(ctx, errhp, OCIContextGenerateKey((dvoid *)usrhp, 
                                                  errhp, &key)))
      return(rval);

    /* set the memory address of the struct to be saved in the context */
    if (qxiqtce(ctx, errhp, OCIContextSetValue((dvoid *)usrhp, errhp,
                                               OCI_DURATION_STATEMENT,
                                               (ub1 *)&key, 
                                               (ub1)sizeof(key),
                                               (dvoid *)icx)))
      return(rval);

    /* set the key as the member of "sctx" */
    if (qxiqtce(ctx, errhp, OCIRawAssignBytes(envhp, errhp, 
                                              (ub1 *)&key,
                                              (ub4)sizeof(key),
                                              &(sctx->sctx_qxiqtim))))
      return(rval);

    sctx_ind->atomic_qxiqtin = OCI_IND_NOTNULL;
    sctx_ind->scind_qxiqtin = OCI_IND_NOTNULL;

    return(rval);
   }

  return(rval);
}