oracle 0.6.3

Oracle binding
Documentation 
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//-----------------------------------------------------------------------------
// Copyright (c) 2018, 2022, Oracle and/or its affiliates.
//
// This software is dual-licensed to you under the Universal Permissive License
// (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
// 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
// either license.
//
// If you elect to accept the software under the Apache License, Version 2.0,
// the following applies:
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
// DemoRemoveSodaDoc.c
//   Demos removing a document from a SODA collection with the specified key.
//-----------------------------------------------------------------------------

#include "SampleLib.h"

//-----------------------------------------------------------------------------
// main()
//-----------------------------------------------------------------------------
int main(int argc, char **argv)
{
    const char *collectionName, *key;
    dpiSodaOperOptions options;
    dpiSampleParams *params;
    dpiSodaColl *coll;
    uint64_t numDocs;
    dpiSodaDb *db;

    // determine name of collection and key of document to retrieve
    if (argc != 3) {
        fprintf(stderr, "Usage: DemoGetSodaDoc <name> <key>\n");
        return 1;
    }
    collectionName = argv[1];
    key = argv[2];

    // connect to database
    db = dpiSamples_getSodaDb();

    // open existing SODA collection
    if (dpiSodaDb_openCollection(db, collectionName, strlen(collectionName),
            DPI_SODA_FLAGS_DEFAULT, &coll) < 0)
        return dpiSamples_showError();
    if (!coll) {
        printf("No collection named %s\n", collectionName);
        return 1;
    }

    // build options
    params = dpiSamples_getParams();
    if (dpiContext_initSodaOperOptions(params->context, &options) < 0)
        return dpiSamples_showError();
    options.key = key;
    options.keyLength = strlen(key);

    // remove document from the collection
    if (dpiSodaColl_remove(coll, &options, DPI_SODA_FLAGS_ATOMIC_COMMIT,
            &numDocs) < 0)
        return dpiSamples_showError();
    printf("%" PRIu64 " documents removed.\n", numDocs);

    // clean up
    dpiSodaColl_release(coll);
    dpiSodaDb_release(db);

    printf("Done.\n");
    return 0;
}