Sequential Delete
This example demonstrates how to delete records sequentially from an APPDS table. In the code the appds_delete_record routine is called twice, first to delete the first three records and then again to delete the next three records. Critical elements are shown in bold.

#include <stdio.h>
#include "clib.h"
#include "acnet_errors.h"
#include "appds.h"


main()
{
    int records_to_delete = 3;
    int records_deleted;
    char error_text[512];
    int return_code; /* ACNET return code */

    /* delete the first 3 records */
    return_code = appds_delete_record("MY_TABLE",(void *) NULL,records_to_delete,
       &records_deleted,error_text,"APPDB","ADBS");
    if (return_code == APPDS_SUCCESS)
    {
       printf("deleted %d records\n");
    } else {
       printf("ERROR:%s\n",error_text);
    }

    /* delete the next 3 records */
    return_code = appds_delete_record("MY_TABLE",(void *) NULL,records_to_delete,
       &records_deleted,error_text,"APPDB","ADBS");
    if (return_code == APPDS_SUCCESS)
    {
       printf("deleted %d records\n");
    } else {
       printf("ERROR:%s\n",error_text);
    }

}

Indexed delete
This example demonstrates how to delete records via indexes from an APPDS table. In the code the appds_delete_record routine is called twice, first to delete the records who's record Id's are [1,4,6] and then again to delete the records with Id's [10,22,45]. Critical elements are shown in bold.

#include <stdio.h>
#include "clib.h"
#include "acnet_errors.h"
#include "appds.h"

main()
{
    int records_to_delete = 3;
    int records_deleted;
    char error_text[512];
    int return_code; /* ACNET return code */
    long id_array[3];

    /* delete the first 3 records */
    id_array[0]=1;
    id_array[1]=4;
    id_array[2]=6;
    return_code = appds_delete_record("MY_TABLE",id_array,records_to_delete,
       &records_deleted,error_text,"APPDB","ADBS");
    if (return_code == APPDS_SUCCESS)
    {
       printf("Deleted %d records\n",records_deleted);
    } else {
       printf("ERROR:%s\n",error_text);
    }

    /* delete the next 3 records */
    id_array[0]=10;
    id_array[1]=22;
    id_array[2]=45;
    return_code = appds_delete_record("MY_TABLE",,id_array,records_to_delete,
       &records_deleted,error_text,"APPDB","ADBS");
    if (return_code == APPDS_SUCCESS)
    {
       printf("Deleted %d records\n",records_deleted);
    } else {
       printf("ERROR:%s\n",error_text);
    }

}

Keyed delete
This example demonstrates how to delete records via a key from an APPDS table. In the code the appds_delete_record routine is called passing "FERMI" for the key value. Critical elements are shown in bold.

#include <stdio.h>
#include "clib.h"
#include "acnet_errors.h"
#include "appds.h"

main()
{
    int not_used_variable;
    int records_deleted;
    char error_text[512];
    int return_code; /* ACNET return code */
    char key_value = "FERMI";

    return_code = appds_delete_recod("MY_TABLE",key_value,not_used_variable,
       &records_deleted,error_text,"APPDB","ADBS");
    if (return_code == APPDS_SUCCESS)
    {
       printf("Deleted %d records\n");
    } else {
       printf("ERROR:%s\n",error_text);
    }

}

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Last modified: Fri Feb 12 16:51:40 CST 1999

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