MSSQL Support

mssql-setup/03_create_tables.sql

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+-- MS SQL Server Table Creation for Weather Connect
+-- Run this as weather_user or a user with CREATE TABLE privileges
+-- This creates the same schema structure as the Oracle implementation
+
+USE WeatherDB;
+GO
+
+-- 1. Create weather_data table (main table)
+IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'dbo.weather_data') AND type = 'U')
+BEGIN
+    CREATE TABLE dbo.weather_data (
+        id BIGINT IDENTITY(1,1) PRIMARY KEY,
+        timestamp DATETIME2(6) NOT NULL,
+        topic NVARCHAR(255) NOT NULL,
+        location NVARCHAR(100),
+        temperature DECIMAL(5,2),
+        humidity DECIMAL(5,2),
+        pressure DECIMAL(7,2),
+        wind_speed DECIMAL(5,2),
+        wind_direction DECIMAL(5,2),
+        rainfall DECIMAL(6,2),
+        created_at DATETIME2(6) DEFAULT GETDATE()
+    );
+    PRINT 'Table weather_data created successfully.';
+END
+ELSE
+BEGIN
+    PRINT 'Table weather_data already exists.';
+END
+GO
+
+-- 2. Create raw_data table (stores raw JSON data)
+IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'dbo.raw_data') AND type = 'U')
+BEGIN
+    CREATE TABLE dbo.raw_data (
+        weather_data_id BIGINT PRIMARY KEY,
+        raw_data NVARCHAR(MAX),
+        CONSTRAINT fk_raw_data_weather_data 
+            FOREIGN KEY (weather_data_id) 
+            REFERENCES dbo.weather_data (id) 
+            ON DELETE CASCADE,
+        CONSTRAINT chk_raw_data_json 
+            CHECK (ISJSON(raw_data) = 1)
+    );
+    PRINT 'Table raw_data created successfully.';
+END
+ELSE
+BEGIN
+    PRINT 'Table raw_data already exists.';
+END
+GO
+
+-- 3. Create index on timestamp and topic for better query performance
+IF NOT EXISTS (SELECT * FROM sys.indexes WHERE name = 'idx_weather_data_ts_topic')
+BEGIN
+    CREATE INDEX idx_weather_data_ts_topic 
+    ON dbo.weather_data (timestamp, topic);
+    PRINT 'Index idx_weather_data_ts_topic created successfully.';
+END
+ELSE
+BEGIN
+    PRINT 'Index idx_weather_data_ts_topic already exists.';
+END
+GO
+
+-- 4. Verify table creation
+SELECT 
+    t.name AS TableName,
+    c.name AS ColumnName,
+    ty.name AS DataType,
+    c.max_length AS MaxLength,
+    c.precision AS Precision,
+    c.scale AS Scale,
+    c.is_nullable AS IsNullable,
+    c.is_identity AS IsIdentity
+FROM sys.tables t
+INNER JOIN sys.columns c ON t.object_id = c.object_id
+INNER JOIN sys.types ty ON c.user_type_id = ty.user_type_id
+WHERE t.name IN ('weather_data', 'raw_data')
+ORDER BY t.name, c.column_id;
+GO
+
+-- 5. Display constraints
+SELECT 
+    fk.name AS ConstraintName,
+    OBJECT_NAME(fk.parent_object_id) AS TableName,
+    COL_NAME(fc.parent_object_id, fc.parent_column_id) AS ColumnName,
+    OBJECT_NAME(fk.referenced_object_id) AS ReferencedTable,
+    COL_NAME(fc.referenced_object_id, fc.referenced_column_id) AS ReferencedColumn
+FROM sys.foreign_keys AS fk
+INNER JOIN sys.foreign_key_columns AS fc 
+    ON fk.object_id = fc.constraint_object_id
+WHERE fk.name = 'fk_raw_data_weather_data';
+GO
+
+-- 6. Display indexes
+SELECT 
+    i.name AS IndexName,
+    t.name AS TableName,
+    i.type_desc AS IndexType,
+    COL_NAME(ic.object_id, ic.column_id) AS ColumnName
+FROM sys.indexes i
+INNER JOIN sys.index_columns ic ON i.object_id = ic.object_id AND i.index_id = ic.index_id
+INNER JOIN sys.tables t ON i.object_id = t.object_id
+WHERE t.name = 'weather_data' AND i.name = 'idx_weather_data_ts_topic'
+ORDER BY ic.key_ordinal;
+GO
+
+PRINT 'Tables created successfully and ready for use.';
+PRINT 'Schema matches Oracle implementation with two-table structure:';
+PRINT '  - weather_data: Main weather metrics table';
+PRINT '  - raw_data: Raw JSON data table with foreign key relationship';
+GO