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//-----------------------------------------------------------------------------
// Copyright (c) 2016, 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.
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// DemoCallProc.c
// Demos simple call of stored procedure with in, in/out and out variables.
//-----------------------------------------------------------------------------
#include "SampleLib.h"
#define SQL_TEXT "begin proc_Demo(:1, :2, :3); end;"
//-----------------------------------------------------------------------------
// main()
//-----------------------------------------------------------------------------
int main(int argc, char **argv)
{
dpiData *inOutValue, *outValue, inValue;
dpiVar *inOutVar, *outVar;
uint32_t numQueryColumns;
dpiStmt *stmt;
dpiConn *conn;
// connect to database and create statement
conn = dpiSamples_getConn(0, NULL);
if (dpiConn_prepareStmt(conn, 0, SQL_TEXT, strlen(SQL_TEXT), NULL, 0,
&stmt) < 0)
return dpiSamples_showError();
// bind IN value
inValue.isNull = 0;
inValue.value.asBytes.ptr = "In value for demoing";
inValue.value.asBytes.length = strlen("In value for demoing");
if (dpiStmt_bindValueByPos(stmt, 1, DPI_NATIVE_TYPE_BYTES, &inValue) < 0)
return dpiSamples_showError();
// bind IN/OUT variable
if (dpiConn_newVar(conn, DPI_ORACLE_TYPE_NUMBER, DPI_NATIVE_TYPE_INT64, 1,
0, 0, 0, NULL, &inOutVar, &inOutValue) < 0)
return dpiSamples_showError();
inOutValue->isNull = 0;
inOutValue->value.asInt64 = 347;
if (dpiStmt_bindByPos(stmt, 2, inOutVar) < 0)
return dpiSamples_showError();
// bind OUT variable
if (dpiConn_newVar(conn, DPI_ORACLE_TYPE_NUMBER, DPI_NATIVE_TYPE_INT64, 1,
0, 0, 0, NULL, &outVar, &outValue) < 0)
return dpiSamples_showError();
if (dpiStmt_bindByPos(stmt, 3, outVar) < 0)
return dpiSamples_showError();
// perform execution
if (dpiStmt_execute(stmt, 0, &numQueryColumns) < 0)
return dpiSamples_showError();
// display value of IN/OUT variable
printf("IN/OUT value (after call) is %" PRId64 "\n",
inOutValue->value.asInt64);
dpiVar_release(inOutVar);
// display value of OUT variable
printf("OUT value (after call) is %" PRId64 "\n", outValue->value.asInt64);
dpiVar_release(outVar);
// clean up
dpiStmt_release(stmt);
dpiConn_release(conn);
printf("Done.\n");
return 0;
}
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