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+-- Database Structure and Sample Data for Environmental Noise Measurement
+-- Based on PMK RI No.2 Tahun 2023
+
+-- ------------------------------------------------------------------------------
+-- Master Tables - Noise Specific
+-- ------------------------------------------------------------------------------
+
+-- Master Area Types
+CREATE TABLE IF NOT EXISTS master_area_types (
+    area_type_id INT PRIMARY KEY,
+    area_type_name VARCHAR(100) NOT NULL,
+    description TEXT,
+    status BOOLEAN DEFAULT TRUE,
+    input_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    input_user VARCHAR(50)
+);
+
+-- Master Noise Quality Standards
+CREATE TABLE IF NOT EXISTS master_noise_standards (
+    standard_id INT PRIMARY KEY,
+    regulation_id INT NOT NULL,
+    area_type_id INT NOT NULL,
+    standard_value DECIMAL(5, 1) NOT NULL,
+    unit VARCHAR(10) DEFAULT 'dB(A)',
+    measurement_time VARCHAR(50),
+    description TEXT,
+    status BOOLEAN DEFAULT TRUE,
+    input_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    input_user VARCHAR(50),
+    FOREIGN KEY (regulation_id) REFERENCES master_regulations(regulation_id),
+    FOREIGN KEY (area_type_id) REFERENCES master_area_types(area_type_id)
+);
+
+-- Master Noise Measurement Methods
+CREATE TABLE IF NOT EXISTS master_noise_methods (
+    method_id INT PRIMARY KEY,
+    method_code VARCHAR(50) NOT NULL,
+    method_name VARCHAR(255) NOT NULL,
+    description TEXT,
+    standard_reference VARCHAR(100),
+    status BOOLEAN DEFAULT TRUE,
+    input_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    input_user VARCHAR(50)
+);
+
+-- Master Noise Measurement Equipment
+CREATE TABLE IF NOT EXISTS master_noise_equipment (
+    equipment_id INT PRIMARY KEY,
+    equipment_code VARCHAR(20) NOT NULL,
+    equipment_name VARCHAR(100) NOT NULL,
+    equipment_type VARCHAR(50),
+    brand VARCHAR(100),
+    model VARCHAR(100),
+    serial_number VARCHAR(100),
+    accuracy_type VARCHAR(20), -- Type 0, 1, 2 for SLM
+    specifications TEXT,
+    calibration_date DATE,
+    next_calibration_date DATE,
+    calibration_status VARCHAR(20),
+    certificate_file VARCHAR(255),
+    status BOOLEAN DEFAULT TRUE,
+    input_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    input_user VARCHAR(50)
+);
+
+-- ------------------------------------------------------------------------------
+-- Transaction Tables - Noise Specific
+-- ------------------------------------------------------------------------------
+
+-- Noise Sampling Plan
+CREATE TABLE IF NOT EXISTS trx_noise_sampling_plan (
+    sampling_plan_id INT PRIMARY KEY,
+    sampling_plan_code VARCHAR(50) NOT NULL,
+    project_name VARCHAR(255) NOT NULL,
+    client_id INT NOT NULL,
+    planned_sampling_date DATE NOT NULL,
+    sampling_location TEXT NOT NULL,
+    point_count INT,
+    approval_status VARCHAR(20) DEFAULT 'DRAFT',
+    notes TEXT,
+    input_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    input_user VARCHAR(50)
+);
+
+-- Noise Measurement Results
+CREATE TABLE IF NOT EXISTS trx_noise_measurement_results (
+    measurement_id INT PRIMARY KEY,
+    sampling_plan_id INT NOT NULL,
+    report_code VARCHAR(50) NOT NULL,
+    sampling_date DATE NOT NULL,
+    start_time TIME,
+    end_time TIME,
+    weather_condition VARCHAR(100),
+    temperature DECIMAL(5, 2),
+    humidity DECIMAL(5, 2),
+    wind_speed DECIMAL(5, 2),
+    wind_direction VARCHAR(10),
+    sampling_officers VARCHAR(100),
+    report_status VARCHAR(20) DEFAULT 'DRAFT',
+    notes TEXT,
+    input_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    input_user VARCHAR(50),
+    FOREIGN KEY (sampling_plan_id) REFERENCES trx_noise_sampling_plan(sampling_plan_id)
+);
+
+-- Noise Measurement Details
+CREATE TABLE IF NOT EXISTS trx_noise_measurement_details (
+    measurement_detail_id INT PRIMARY KEY,
+    measurement_id INT NOT NULL,
+    point_code VARCHAR(20) NOT NULL,
+    location_name VARCHAR(255) NOT NULL,
+    area_description TEXT,
+    area_type_id INT NOT NULL,
+    latitude DECIMAL(10, 6),
+    longitude DECIMAL(10, 6),
+    measurement_height DECIMAL(4, 2),
+    distance_from_source DECIMAL(6, 2),
+    noise_source TEXT,
+    noise_characteristics VARCHAR(50), -- Continuous, Intermittent, Impulsive, etc.
+    method_id INT NOT NULL,
+    equipment_id INT NOT NULL,
+    day_value DECIMAL(5, 1) NOT NULL, -- Ld (day)
+    evening_value DECIMAL(5, 1) NOT NULL, -- Le (evening)
+    night_value DECIMAL(5, 1) NOT NULL, -- Ln (night)
+    leq24_value DECIMAL(5, 1) NOT NULL, -- Leq 24 hours
+    standard_id INT NOT NULL,
+    compliance_status VARCHAR(20),
+    recommendations TEXT,
+    notes TEXT,
+    input_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    input_user VARCHAR(50),
+    FOREIGN KEY (measurement_id) REFERENCES trx_noise_measurement_results(measurement_id),
+    FOREIGN KEY (area_type_id) REFERENCES master_area_types(area_type_id),
+    FOREIGN KEY (method_id) REFERENCES master_noise_methods(method_id),
+    FOREIGN KEY (equipment_id) REFERENCES master_noise_equipment(equipment_id),
+    FOREIGN KEY (standard_id) REFERENCES master_noise_standards(standard_id)
+);
+
+-- Noise Control Recommendations
+CREATE TABLE IF NOT EXISTS trx_noise_control_recommendations (
+    recommendation_id INT PRIMARY KEY,
+    measurement_detail_id INT NOT NULL,
+    control_type VARCHAR(50) NOT NULL, -- Engineering, Administrative, PPE
+    control_description TEXT NOT NULL,
+    priority INT,
+    estimated_cost DECIMAL(12, 2),
+    estimated_reduction DECIMAL(5, 1),
+    implementation_status VARCHAR(20) DEFAULT 'PLANNED',
+    input_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    input_user VARCHAR(50),
+    FOREIGN KEY (measurement_detail_id) REFERENCES trx_noise_measurement_details(measurement_detail_id)
+);
+
+-- ------------------------------------------------------------------------------
+-- Sample Data Insertion - Master Tables
+-- ------------------------------------------------------------------------------
+
+-- Insert Data Master Area Types
+INSERT INTO master_area_types (area_type_id, area_type_name, description, status, input_user)
+VALUES 
+(1, 'Residential Areas', 'Residential housing and settlements', TRUE, 'admin'),
+(2, 'Commercial and Trade Areas', 'Commercial and service areas, including offices', TRUE, 'admin'),
+(3, 'Office and Commercial Areas', 'Office and commercial areas', TRUE, 'admin'),
+(4, 'Industrial Areas', 'Manufacturing industrial areas', TRUE, 'admin'),
+(5, 'Hospitals and Healthcare Facilities', 'Hospitals, health centers, and other healthcare facilities', TRUE, 'admin'),
+(6, 'Schools and Educational Facilities', 'Educational areas including schools, madrasas, colleges', TRUE, 'admin'),
+(7, 'Places of Worship', 'Worship areas such as mosques, churches, temples, and other religious buildings', TRUE, 'admin');
+
+-- Insert Data Master Noise Standards
+INSERT INTO master_noise_standards (standard_id, regulation_id, area_type_id, standard_value, unit, measurement_time, description, status, input_user)
+VALUES 
+(1, 1, 1, 55.0, 'dB(A)', 'Leq 24 hours', 'Noise quality standard for residential areas', TRUE, 'admin'),
+(2, 1, 2, 70.0, 'dB(A)', 'Leq 24 hours', 'Noise quality standard for commercial and trade areas', TRUE, 'admin'),
+(3, 1, 3, 65.0, 'dB(A)', 'Leq 24 hours', 'Noise quality standard for office and commercial areas', TRUE, 'admin'),
+(4, 1, 4, 70.0, 'dB(A)', 'Leq 24 hours', 'Noise quality standard for industrial areas', TRUE, 'admin'),
+(5, 1, 5, 55.0, 'dB(A)', 'Leq 24 hours', 'Noise quality standard for hospitals and healthcare facilities', TRUE, 'admin'),
+(6, 1, 6, 55.0, 'dB(A)', 'Leq during school hours', 'Noise quality standard for schools and educational facilities', TRUE, 'admin'),
+(7, 1, 7, 55.0, 'dB(A)', 'Leq during worship times', 'Noise quality standard for places of worship', TRUE, 'admin');
+
+-- Insert Data Master Noise Measurement Methods
+INSERT INTO master_noise_methods (method_id, method_code, method_name, description, standard_reference, status, input_user)
+VALUES 
+(1, 'SNI-7231-2009', 'SNI 7231:2009 - Environmental Noise Measurement Method', 'Method for measuring environmental noise levels using Sound Level Meter', 'SNI 7231:2009', TRUE, 'admin'),
+(2, 'KEPMEN-LH-48-1996', 'Ministry of Environment Decree No. 48 of 1996 - Appendix II', 'Noise level measurement method based on the Ministry of Environment Decree', 'Ministry of Environment Decree No.48 of 1996', TRUE, 'admin');
+
+-- Insert Data Master Noise Measurement Equipment
+INSERT INTO master_noise_equipment (equipment_id, equipment_code, equipment_name, equipment_type, brand, model, serial_number, accuracy_type, specifications, calibration_date, next_calibration_date, calibration_status, certificate_file, status, input_user)
+VALUES 
+(1, 'SLM-01', 'Sound Level Meter', 'SLM', 'RION', 'NL-52', '12345678', 'Type 1', 'Range: 20-130 dB, Accuracy: ±1.0 dB, Frequency range: 20 Hz - 20 kHz', '2024-02-15', '2025-02-15', 'VALID', '/documents/calibration/slm_rion_2024.pdf', TRUE, 'admin'),
+(2, 'CAL-01', 'Acoustic Calibrator', 'Calibrator', 'RION', 'NC-74', '87654321', 'Class 1', 'Calibration level: 94 dB, Accuracy: ±0.3 dB', '2024-02-15', '2025-02-15', 'VALID', '/documents/calibration/cal_rion_2024.pdf', TRUE, 'admin'),
+(3, 'SLM-02', 'Sound Level Meter', 'SLM', 'Cirrus', 'CR171B', 'CR123456', 'Type 1', 'Range: 20-140 dB, Accuracy: ±0.5 dB, Frequency range: 10 Hz - 20 kHz', '2023-11-20', '2024-11-20', 'VALID', '/documents/calibration/slm_cirrus_2023.pdf', TRUE, 'admin'),
+(4, 'WS-01', 'Weather Station', 'Weather Meter', 'Kestrel', '5500', 'KW123456', 'N/A', 'Wind speed, direction, temperature, humidity, pressure measurement', '2023-10-10', '2024-10-10', 'VALID', '/documents/calibration/weather_kestrel_2023.pdf', TRUE, 'admin');
+
+-- ------------------------------------------------------------------------------
+-- Sample Data Insertion - Transaction Tables
+-- ------------------------------------------------------------------------------
+
+-- Sample Noise Sampling Plan
+INSERT INTO trx_noise_sampling_plan (sampling_plan_id, sampling_plan_code, project_name, client_id, planned_sampling_date, sampling_location, point_count, approval_status, notes, input_date, input_user)
+VALUES 
+(1, 'SP-NOISE-2024-001', 'Environmental Noise Measurement at PT. Integrated Manufacturing Industries', 201, '2024-06-10', 'PT. Integrated Manufacturing Industries, Industrial Zone Block C5, Karawang, West Java', 6, 'APPROVED', 'Environmental noise measurement for compliance with standards', '2024-06-01 09:00:00', 'supervisor');
+
+-- Sample Noise Measurement Results
+INSERT INTO trx_noise_measurement_results (measurement_id, sampling_plan_id, report_code, sampling_date, start_time, end_time, weather_condition, temperature, humidity, wind_speed, wind_direction, sampling_officers, report_status, notes, input_date, input_user)
+VALUES 
+(1, 1, 'LHU/NOISE/06/2024/003', '2024-06-10', '08:00:00', '17:00:00', 'Sunny', 30.0, 65.0, 1.5, 'East', 'Agus Setiawan, Dina Wijaya', 'FINAL', 'Measurement proceeded smoothly as planned', '2024-06-10 17:30:00', 'analyst');
+
+-- Sample Noise Measurement Details
+INSERT INTO trx_noise_measurement_details (measurement_detail_id, measurement_id, point_code, location_name, area_description, area_type_id, latitude, longitude, measurement_height, distance_from_source, noise_source, noise_characteristics, method_id, equipment_id, day_value, evening_value, night_value, leq24_value, standard_id, compliance_status, recommendations, notes, input_date, input_user)
+VALUES 
+-- Main Factory Entrance
+(1, 1, 'NL-1', 'Main Factory Entrance', 'Main factory gate area, moderate traffic level', 4, -6.372500, 107.524167, 1.5, 3.0, 'Vehicle traffic, loading/unloading activities', 'Intermittent', 1, 1, 67.8, 65.2, 62.1, 66.3, 4, 'COMPLY', '', 'Noise is quite high during morning and evening peak hours', '2024-06-10 17:35:00', 'analyst'),
+
+-- Production Building
+(2, 1, 'NL-2', 'Production Building', 'Main production building area, high activity level', 4, -6.372778, 107.524444, 1.5, 1.0, 'Production machinery, stamping, air compressors', 'Continuous, Impulsive', 1, 1, 73.4, 72.1, 68.5, 72.2, 4, 'NOT_COMPLY', 'Install sound absorbers, check machine maintenance', 'High noise from stamping machines and compressors', '2024-06-10 17:40:00', 'analyst'),
+
+-- Office Building
+(3, 1, 'NL-3', 'Office Building', 'Administrative office area, active HVAC system', 3, -6.372944, 107.525000, 1.5, 5.0, 'HVAC system, general office activities', 'Continuous, Low Frequency', 1, 1, 64.5, 62.3, 58.7, 63.2, 3, 'COMPLY', '', 'Noise primarily from air conditioning system', '2024-06-10 17:45:00', 'analyst'),
+
+-- Facility Boundary (East)
+(4, 1, 'NL-4', 'Facility Boundary (East)', 'Eastern factory boundary, close to public road', 4, -6.373111, 107.526111, 1.5, 10.0, 'Factory operations, public road traffic', 'Intermittent', 1, 1, 68.9, 67.2, 65.6, 67.8, 4, 'COMPLY', '', 'Highest noise from road traffic', '2024-06-10 17:50:00', 'analyst'),
+
+-- Power Generator Area
+(5, 1, 'NL-5', 'Power Generator Area', 'Generator area, very high noise level', 4, -6.373278, 107.524722, 1.5, 1.0, 'Power generators, cooling systems', 'Continuous, Tonal', 1, 1, 78.6, 77.5, 76.3, 77.9, 4, 'NOT_COMPLY', 'Install enclosure, add acoustic insulation', 'Noise very high even outside generator area', '2024-06-10 17:55:00', 'analyst'),
+
+-- Nearest Residential Area
+(6, 1, 'NL-6', 'Nearest Residential Area', 'Nearest residential area to factory', 1, -6.374167, 107.527222, 1.5, 300.0, 'Factory noise, general traffic', 'Intermittent, Background', 1, 1, 57.3, 55.6, 52.1, 55.9, 1, 'NOT_COMPLY', 'Install sound barriers, limit night operations', 'Factory noise still audible in residential area', '2024-06-10 18:00:00', 'analyst');
+
+-- Sample Noise Control Recommendations
+INSERT INTO trx_noise_control_recommendations (recommendation_id, measurement_detail_id, control_type, control_description, priority, estimated_cost, estimated_reduction, implementation_status, input_date, input_user)
+VALUES 
+-- Recommendations for Production Building
+(1, 2, 'Engineering Control', 'Installation of sound absorbers on walls and ceiling of production area', 1, 75000000.00, 3.5, 'PLANNED', '2024-06-15 09:00:00', 'analyst'),
+(2, 2, 'Engineering Control', 'Installation of enclosure for stamping machines', 1, 120000000.00, 8.0, 'PLANNED', '2024-06-15 09:05:00', 'analyst'),
+(3, 2, 'Administrative Control', 'Preventive maintenance program for production machinery', 2, 0.00, 2.0, 'PLANNED', '2024-06-15 09:10:00', 'analyst'),
+(4, 2, 'PPE', 'Provision of ear muffs for workers in production area', 1, 15000000.00, 0.0, 'PLANNED', '2024-06-15 09:15:00', 'analyst'),
+
+-- Recommendations for Power Generator Area
+(5, 5, 'Engineering Control', 'Installation of acoustic enclosure for generators', 1, 200000000.00, 15.0, 'PLANNED', '2024-06-15 09:20:00', 'analyst'),
+(6, 5, 'Engineering Control', 'Installation of silencers on air intake and exhaust', 1, 85000000.00, 6.0, 'PLANNED', '2024-06-15 09:25:00', 'analyst'),
+(7, 5, 'Administrative Control', 'Relocate generators further from office areas and property boundaries', 2, 350000000.00, 10.0, 'PLANNED', '2024-06-15 09:30:00', 'analyst'),
+
+-- Recommendations for Nearest Residential Area
+(8, 6, 'Engineering Control', 'Installation of noise barrier along factory boundary facing residential area', 1, 180000000.00, 5.0, 'PLANNED', '2024-06-15 09:35:00', 'analyst'),
+(9, 6, 'Administrative Control', 'Restriction of noisy equipment operation during night time', 1, 0.00, 3.0, 'PLANNED', '2024-06-15 09:40:00', 'analyst'),
+(10, 6, 'Administrative Control', 'Regular noise monitoring program at residential boundary', 2, 30000000.00, 0.0, 'PLANNED', '2024-06-15 09:45:00', 'analyst');