// Licensed to the Apache Software Foundation (ASF) under one or more
// contributor license agreements.  See the NOTICE file distributed with
// this work for additional information regarding copyright ownership.
// The ASF licenses this file to You 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
//
// http://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.
= Error Codes

To get an error code, use the `SQLGetDiagRec()` function. It returns a string holding the ANSI SQL error code defined. For example:

[source,c++]
----
SQLHENV env;
SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &env);

SQLSetEnvAttr(env, SQL_ATTR_ODBC_VERSION, reinterpret_cast<void*>(SQL_OV_ODBC3), 0);

SQLHDBC dbc;
SQLAllocHandle(SQL_HANDLE_DBC, env, &dbc);

SQLCHAR connectStr[] = "DRIVER={Apache Ignite};SERVER=localhost;PORT=10800;SCHEMA=Person;";
SQLDriverConnect(dbc, NULL, connectStr, SQL_NTS, 0, 0, 0, SQL_DRIVER_COMPLETE);

SQLAllocHandle(SQL_HANDLE_STMT, dbc, &stmt);

SQLCHAR query[] = "SELECT firstName, lastName, resume, salary FROM Person";
SQLRETURN ret = SQLExecDirect(stmt, query, SQL_NTS);

if (ret != SQL_SUCCESS)
{
	SQLCHAR sqlstate[7] = "";
	SQLINTEGER nativeCode;

	SQLCHAR message[1024];
	SQLSMALLINT reallen = 0;

	int i = 1;
	ret = SQLGetDiagRec(SQL_HANDLE_STMT, stmt, i, sqlstate,
                      &nativeCode, message, sizeof(message), &reallen);

	while (ret != SQL_NO_DATA)
	{
		std::cout << sqlstate << ": " << message;

		++i;
		ret = SQLGetDiagRec(SQL_HANDLE_STMT, stmt, i, sqlstate,
                        &nativeCode, message, sizeof(message), &reallen);
	}
}
----

The table below lists all the error codes supported by Ignite presently. This list may be extended in the future.

[width="100%",cols="20%,80%"]
|=======================================================================
|Code |Description

|01S00
|Invalid connection string attribute.

|01S02
|The driver did not support the specified value and substituted a similar value.

|08001
|The driver failed to open a connection to the cluster.

|08002
|The connection is already established.

|08003
|The connection is in the closed state. Happened unexpectedly.

|08004
|The connection is rejected by the cluster.

|08S01
|Connection failure.

|22026
|String length mismatch in data-at-execution dialog.

|23000
|Integrity constraint violation (e.g. duplicate key, null key and so on).

|24000
|Invalid cursor state.

|42000
|Syntax error in request.

|42S01
|Table already exists.

|42S02
|Table not found.

|42S11
|Index already exists.

|42S12
|Index not found.

|42S21
|Column already exists.

|42S22
|Column not found.

|HY000
|General error. See error message for details.

|HY001
|Memory allocation error.

|HY003
|Invalid application buffer type.

|HY004
|Invalid SQL data type.

|HY009
|Invalid use of null-pointer.

|HY010
|Function call sequence error.

|HY090
|Invalid string or buffer length (e.g. negative or zero length).

|HY092
|Option type out of range.

|HY097
|Column type out of range.

|HY105
|Invalid parameter type.

|HY106
|Fetch type out of range.

|HYC00
|Feature is not implemented.

|IM001
|Function is not supported.
|=======================================================================