public static object Read(SQLiteType sqliteType, StatementHandle handle, int ordinal) { Debug.Assert(handle != null && !handle.IsInvalid, "handle is null."); if (sqliteType == SQLiteType.Null || NativeMethods.sqlite3_column_type(handle, ordinal) == Constants.SQLITE_NULL) { return(DBNull.Value); } switch (sqliteType) { case SQLiteType.Integer: return(NativeMethods.sqlite3_column_int64(handle, ordinal)); case SQLiteType.Float: return(NativeMethods.sqlite3_column_double(handle, ordinal)); case SQLiteType.Text: return(NativeMethods.sqlite3_column_text(handle, ordinal)); default: Debug.Assert(sqliteType == SQLiteType.Blob, "_sqliteType is not Blob."); return(NativeMethods.sqlite3_column_blob(handle, ordinal)); } }
internal SQLiteDataReader(SQLiteCommand command, IList <StatementHandle> handles, int recordsAffected) { Debug.Assert(command != null, "command is null."); Debug.Assert(handles != null, "handles is null."); _command = command; if (handles.Count > 0) { _hasRows = true; _currentHandle = handles[0]; } _handles = handles; _recordsAffected = recordsAffected; }
public override bool NextResult() { CheckClosed("NextResult"); _currentIndex++; if (_currentIndex >= _handles.Count) { return(false); } _hasRead = false; _currentHandle = _handles[_currentIndex]; return(true); }
public FesStatement(DatabaseBase db, TransactionBase transaction) { if (!(db is FesDatabase)) { throw new ArgumentException($"Specified argument is not of {nameof(FesDatabase)} type."); } _db = (FesDatabase)db; _handle = new StatementHandle(); OutputParameters = new Queue <DbValue[]>(); _statusVector = new IntPtr[IscCodes.ISC_STATUS_LENGTH]; _fetchSqlDa = IntPtr.Zero; if (transaction != null) { Transaction = transaction; } }
public FesStatement(IDatabase db, TransactionBase transaction) { if (!(db is FesDatabase)) { throw new ArgumentException("Specified argument is not of FesDatabase type."); } _recordsAffected = -1; _db = (FesDatabase)db; _handle = new StatementHandle(); _outputParams = new Queue(); _statusVector = new IntPtr[IscCodes.ISC_STATUS_LENGTH]; _fetchSqlDa = IntPtr.Zero; if (transaction != null) { Transaction = transaction; } }
/// <summary> /// This request is used to execute a PreparedStatement, optionally with values to bind to the parameters in the Statement. /// </summary> public async Task <ExecuteResponse> ExecuteRequestAsync(StatementHandle statementHandle, pbc::RepeatedField <TypedValue> parameterValues, ulong firstFrameMaxSize, bool hasParameterValues, RequestOptions options) { ExecuteRequest req = new ExecuteRequest { StatementHandle = statementHandle, ParameterValues = parameterValues, FirstFrameMaxSize = firstFrameMaxSize, HasParameterValues = hasParameterValues }; WireMessage msg = new WireMessage { Name = Constants.WireMessagePrefix + "ExecuteRequest", WrappedMessage = req.ToByteString() }; using (Response webResponse = await PostRequestAsync(msg.ToByteArray(), options)) { if (webResponse.WebResponse.StatusCode != HttpStatusCode.OK) { WireMessage output = WireMessage.Parser.ParseFrom(webResponse.WebResponse.GetResponseStream()); ErrorResponse res = ErrorResponse.Parser.ParseFrom(output.WrappedMessage); throw new WebException( string.Format( "ExecuteRequestAsync failed! connectionId: {0}, Response code was: {1}, Response body was: {2}", statementHandle.ConnectionId, webResponse.WebResponse.StatusCode, res.ToString())); } else { WireMessage output = WireMessage.Parser.ParseFrom(webResponse.WebResponse.GetResponseStream()); ExecuteResponse res = ExecuteResponse.Parser.ParseFrom(output.WrappedMessage); return(res); } } }
public void ManyRowBatchInsertTest() { var client = new PhoenixClient(_credentials); string connId = GenerateRandomConnId(); RequestOptions options = RequestOptions.GetGatewayDefaultOptions(); // In gateway mode, url format will be https://<cluster dns name>.azurehdinsight.net/hbasephoenix<N>/ // Requests sent to hbasephoenix0/ will be forwarded to PQS on workernode0 options.AlternativeEndpoint = "hbasephoenix0/"; string tableName = "Persons" + connId; OpenConnectionResponse openConnResponse = null; CreateStatementResponse createStatementResponse = null; try { // Opening connection pbc::MapField <string, string> info = new pbc::MapField <string, string>(); openConnResponse = client.OpenConnectionRequestAsync(connId, info, options).Result; // Syncing connection ConnectionProperties connProperties = new ConnectionProperties { HasAutoCommit = true, AutoCommit = true, HasReadOnly = true, ReadOnly = false, TransactionIsolation = 0, Catalog = "", Schema = "", IsDirty = true }; client.ConnectionSyncRequestAsync(connId, connProperties, options).Wait(); // Creating statement createStatementResponse = client.CreateStatementRequestAsync(connId, options).Result; // Running query 1 string sql1 = "CREATE TABLE " + tableName + " (LastName varchar(255) PRIMARY KEY,FirstName varchar(255))"; ExecuteResponse execResponse1 = client.PrepareAndExecuteRequestAsync(connId, sql1, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options).Result; // Running query 2 // Batching two sqls in a single HTTP request pbc::RepeatedField <string> list = new pbc.RepeatedField <string>(); list.Add("UPSERT INTO " + tableName + " VALUES('d1','x1')"); list.Add("UPSERT INTO " + tableName + " VALUES('d2','x2')"); ExecuteBatchResponse execResponse2 = client.PrepareAndExecuteBatchRequestAsync(connId, createStatementResponse.StatementId, list, options).Result; // Running query 3 string sql3 = "select count(*) from " + tableName; ExecuteResponse execResponse3 = client.PrepareAndExecuteRequestAsync(connId, sql3, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options).Result; long count3 = execResponse3.Results[0].FirstFrame.Rows[0].Value[0].ScalarValue.NumberValue; Assert.AreEqual(2, count3); // Running query 4 // Batching two sqls in a single HTTP request // Creating statement 2 string sql4 = "UPSERT INTO " + tableName + " VALUES (?,?)"; PrepareResponse prepareResponse = client.PrepareRequestAsync(connId, sql4, int.MaxValue, options).Result; StatementHandle statementHandle = prepareResponse.Statement; pbc::RepeatedField <UpdateBatch> updates = new pbc.RepeatedField <UpdateBatch>(); for (int i = 3; i < 10; i++) { pbc::RepeatedField <TypedValue> parameterValues = new pbc.RepeatedField <TypedValue>(); TypedValue v1 = new TypedValue { StringValue = "d" + i, Type = Rep.String }; TypedValue v2 = new TypedValue { StringValue = "x" + i, Type = Rep.String }; parameterValues.Add(v1); parameterValues.Add(v2); UpdateBatch batch = new UpdateBatch { ParameterValues = parameterValues }; updates.Add(batch); } ExecuteBatchResponse execResponse4 = client.ExecuteBatchRequestAsync(connId, statementHandle.Id, updates, options).Result; // Running query 5 string sql5 = "select count(*) from " + tableName; ExecuteResponse execResponse5 = client.PrepareAndExecuteRequestAsync(connId, sql5, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options).Result; long count5 = execResponse5.Results[0].FirstFrame.Rows[0].Value[0].ScalarValue.NumberValue; Assert.AreEqual(9, count5); // Running query 5 string sql6 = "DROP TABLE " + tableName; client.PrepareAndExecuteRequestAsync(connId, sql6, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options).Wait(); } catch (Exception ex) { Assert.Fail(ex.Message); } finally { if (createStatementResponse != null) { client.CloseStatementRequestAsync(connId, createStatementResponse.StatementId, options).Wait(); createStatementResponse = null; } if (openConnResponse != null) { client.CloseConnectionRequestAsync(connId, options).Wait(); openConnResponse = null; } } }
public void QueryManyRowTest() { var client = new PhoenixClient(_credentials); string connId = GenerateRandomConnId(); RequestOptions options = RequestOptions.GetGatewayDefaultOptions(); // In gateway mode, url format will be https://<cluster dns name>.azurehdinsight.net/hbasephoenix<N>/ // Requests sent to hbasephoenix0/ will be forwarded to PQS on workernode0 options.AlternativeEndpoint = "hbasephoenix0/"; string tableName = "Persons" + connId; OpenConnectionResponse openConnResponse = null; CreateStatementResponse createStatementResponse = null; try { // Opening connection pbc::MapField <string, string> info = new pbc::MapField <string, string>(); openConnResponse = client.OpenConnectionRequestAsync(connId, info, options).Result; // Syncing connection ConnectionProperties connProperties = new ConnectionProperties { HasAutoCommit = true, AutoCommit = false, HasReadOnly = true, ReadOnly = false, TransactionIsolation = 0, Catalog = "", Schema = "", IsDirty = true }; client.ConnectionSyncRequestAsync(connId, connProperties, options).Wait(); createStatementResponse = client.CreateStatementRequestAsync(connId, options).Result; // Running query 1 string sql1 = "CREATE TABLE " + tableName + " (LastName varchar(255) PRIMARY KEY,FirstName varchar(255))"; client.PrepareAndExecuteRequestAsync(connId, sql1, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options).Wait(); // Commit statement 1 client.CommitRequestAsync(connId, options).Wait(); // Creating statement 2 string sql2 = "UPSERT INTO " + tableName + " VALUES (?,?)"; PrepareResponse prepareResponse = client.PrepareRequestAsync(connId, sql2, long.MaxValue, options).Result; StatementHandle statementHandle = prepareResponse.Statement; // Insert 300 rows for (int i = 0; i < 300; i++) { pbc::RepeatedField <TypedValue> list = new pbc.RepeatedField <TypedValue>(); TypedValue v1 = new TypedValue { StringValue = "d" + i, Type = Rep.String }; TypedValue v2 = new TypedValue { StringValue = "x" + i, Type = Rep.String }; list.Add(v1); list.Add(v2); ExecuteResponse executeResponse = client.ExecuteRequestAsync(statementHandle, list, long.MaxValue, true, options).Result; } // Commit statement 2 client.CommitRequestAsync(connId, options).Wait(); // Running query 3 string sql3 = "select * from " + tableName; ExecuteResponse execResponse3 = client.PrepareAndExecuteRequestAsync(connId, sql3, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options).Result; pbc::RepeatedField <Row> rows = execResponse3.Results[0].FirstFrame.Rows; for (int i = 0; i < rows.Count; i++) { Row row = rows[i]; Debug.WriteLine(row.Value[0].ScalarValue.StringValue + " " + row.Value[1].ScalarValue.StringValue); } // 100 is hard coded in server side as default firstframe size // In order to get remaining rows, FetchRequestAsync is used Assert.AreEqual(100, rows.Count); // Fetch remaining rows, offset is not used, simply set to 0 // if FetchResponse.Frame.Done = true, that means all the rows fetched FetchResponse fetchResponse = client.FetchRequestAsync(connId, createStatementResponse.StatementId, 0, int.MaxValue, options).Result; Assert.AreEqual(200, fetchResponse.Frame.Rows.Count); Assert.AreEqual(true, fetchResponse.Frame.Done); // Running query 4 string sql4 = "DROP TABLE " + tableName; client.PrepareAndExecuteRequestAsync(connId, sql4, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options).Wait(); // Commit statement 4 client.CommitRequestAsync(connId, options).Wait(); } catch (Exception ex) { Assert.Fail(ex.Message); } finally { if (createStatementResponse != null) { client.CloseStatementRequestAsync(connId, createStatementResponse.StatementId, options).Wait(); createStatementResponse = null; } if (openConnResponse != null) { client.CloseConnectionRequestAsync(connId, options).Wait(); openConnResponse = null; } } }
/// <summary> /// This request is used to execute a PreparedStatement, optionally with values to bind to the parameters in the Statement. /// </summary> public async Task<ExecuteResponse> ExecuteRequestAsync(StatementHandle statementHandle, pbc::RepeatedField<TypedValue> parameterValues, ulong firstFrameMaxSize, bool hasParameterValues, RequestOptions options) { ExecuteRequest req = new ExecuteRequest { StatementHandle = statementHandle, ParameterValues = parameterValues, FirstFrameMaxSize = firstFrameMaxSize, HasParameterValues = hasParameterValues }; WireMessage msg = new WireMessage { Name = Constants.WireMessagePrefix + "ExecuteRequest", WrappedMessage = req.ToByteString() }; using (Response webResponse = await PostRequestAsync(msg.ToByteArray(), options)) { if (webResponse.WebResponse.StatusCode != HttpStatusCode.OK) { WireMessage output = WireMessage.Parser.ParseFrom(webResponse.WebResponse.GetResponseStream()); ErrorResponse res = ErrorResponse.Parser.ParseFrom(output.WrappedMessage); throw new WebException( string.Format( "ExecuteRequestAsync failed! connectionId: {0}, Response code was: {1}, Response body was: {2}", statementHandle.ConnectionId, webResponse.WebResponse.StatusCode, res.ToString())); } else { WireMessage output = WireMessage.Parser.ParseFrom(webResponse.WebResponse.GetResponseStream()); ExecuteResponse res = ExecuteResponse.Parser.ParseFrom(output.WrappedMessage); return res; } } }
public static async void ExecuteProcedure(DataContract dataContract) { string connId = Guid.NewGuid().ToString(); RequestOptions options = RequestOptions.GetGatewayDefaultOptions(); var credentials = new ClusterCredentials(new Uri("jdbc:phoenix:10.16.0.206:/hbase-unsecure"), null, null); var client = new PhoenixClient(credentials); // In gateway mode, PQS requests will be https://<cluster dns name>.azurehdinsight.net/hbasephoenix<N>/ // Requests sent to hbasephoenix0/ will be forwarded to PQS on workernode0 options.AlternativeEndpoint = "hbasephoenix0/"; OpenConnectionResponse openConnResponse = null; StatementHandle statementHandle = null; try { //var info = new pbc::MapField<string, string>(); // Opening connection pbc::MapField <string, string> info = new pbc::MapField <string, string>(); openConnResponse = await client.OpenConnectionRequestAsync(connId, info, options); // Syncing connection ConnectionProperties connProperties = new ConnectionProperties { HasAutoCommit = true, AutoCommit = true, HasReadOnly = true, ReadOnly = false, TransactionIsolation = 0, Catalog = "", Schema = "", IsDirty = true }; await client.ConnectionSyncRequestAsync(connId, connProperties, options); var createStatementResponse = await client.CreateStatementRequestAsync(connId, options); string sql = "SELECT * FROM Customers"; ExecuteResponse executeResponse = await client.PrepareAndExecuteRequestAsync(connId, sql, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options); pbc::RepeatedField <Row> rows = executeResponse.Results[0].FirstFrame.Rows; // Loop through all of the returned rows and display the first two columns for (int i = 0; i < rows.Count; i++) { Row row = rows[i]; Console.WriteLine(row.Value[0].ScalarValue.StringValue + " " + row.Value[1].ScalarValue.StringValue); } // 100 is hard-coded on the server side as the default firstframe size // FetchRequestAsync is called to get any remaining rows Console.WriteLine(""); Console.WriteLine($"Number of rows: {rows.Count}"); // Fetch remaining rows, offset is not used, simply set to 0 // When FetchResponse.Frame.Done is true, all rows were fetched FetchResponse fetchResponse = await client.FetchRequestAsync(connId, createStatementResponse.StatementId, 0, int.MaxValue, options); Console.WriteLine($"Frame row count: {fetchResponse.Frame.Rows.Count}"); Console.WriteLine($"Fetch response is done: {fetchResponse.Frame.Done}"); Console.WriteLine(""); // Running query 2 string sql2 = "select count(*) from Customers"; ExecuteResponse countResponse = await client.PrepareAndExecuteRequestAsync(connId, sql2, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options); long count = countResponse.Results[0].FirstFrame.Rows[0].Value[0].ScalarValue.NumberValue; Console.WriteLine($"Total customer records: {count}"); Console.WriteLine(""); // Running query 3 string sql3 = "select StateProvince, count(*) as Number from Customers group by StateProvince order by Number desc"; ExecuteResponse groupByResponse = await client.PrepareAndExecuteRequestAsync(connId, sql3, createStatementResponse.StatementId, long.MaxValue, int.MaxValue, options); pbc::RepeatedField <Row> stateRows = groupByResponse.Results[0].FirstFrame.Rows; for (int i = 0; i < stateRows.Count; i++) { Row row = stateRows[i]; Console.WriteLine(row.Value[0].ScalarValue.StringValue + ": " + row.Value[1].ScalarValue.NumberValue); } } catch (Exception ex) { } finally { if (statementHandle != null) { await client.CloseStatementRequestAsync(connId, statementHandle.Id, options); statementHandle = null; } if (openConnResponse != null) { await client.CloseConnectionRequestAsync(connId, options); openConnResponse = null; } } }
private ExprHandle() { _statement = StatementHandle.NULL; }
public ExprHandle(StatementHandle statement) { _statement = statement; }