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44 lines
1.9 KiB
Transact-SQL
44 lines
1.9 KiB
Transact-SQL
USE sales
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GO
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-- Create database scoped credential to connect to Oracle server
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-- Provide appropriate credentials to Oracle server in below statement.
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-- If you are using SQL Server Management Studio then you can replace the parameters using
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-- the Query menu, and "Specify Values for Template Parameters" option.
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CREATE DATABASE SCOPED CREDENTIAL [OracleCredential]
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WITH IDENTITY = '<oracle_user,nvarchar(100),sales>', SECRET = '<oracle_user_password,nvarchar(100),sql19tw0oracle>';
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-- Create external data source that points to Oracle server
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--
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CREATE EXTERNAL DATA SOURCE [OracleSalesSrvr]
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WITH (LOCATION = 'oracle://<oracle_server,nvarchar(100),oracle-server-name>',CREDENTIAL = [OracleCredential]);
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-- Create external table over inventory table on Oracle server
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-- NOTE: Table names and column names will use ANSI SQL quoted identifier while querying against Oracle.
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-- As a result, the names are case-sensitive so specify the name in the external table definition
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-- that matches the exact case of the table and column names in the Oracle metadata.
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CREATE EXTERNAL TABLE [inventory_ora]
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([inv_date] DECIMAL(10,0) NOT NULL, [inv_item] DECIMAL(10,0) NOT NULL,
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[inv_warehouse] DECIMAL(10,0) NOT NULL, [inv_quantity_on_hand] DECIMAL(10,0))
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WITH (DATA_SOURCE=[OracleSalesSrvr],
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LOCATION='<oracle_service_name,nvarchar(30),xe>.SALES.INVENTORY');
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GO
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-- Join external table with local tables
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--
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SELECT TOP(100) w.w_warehouse_name, i.inv_item, SUM(i.inv_quantity_on_hand) as total_quantity
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FROM [inventory_ora] as i
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JOIN item as it
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ON it.i_item_sk = i.inv_item
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JOIN warehouse as w
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ON w.w_warehouse_sk = i.inv_warehouse
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WHERE it.i_category = 'Books' and i.inv_item BETWEEN 1 and 18000 --> get items within specific range
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GROUP BY w.w_warehouse_name, i.inv_item;
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GO
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-- Cleanup
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--
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DROP EXTERNAL TABLE [inventory_ora];
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DROP EXTERNAL DATA SOURCE [OracleSalesSrvr] ;
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DROP DATABASE SCOPED CREDENTIAL [OracleCredential];
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GO |