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POEliminating recursive SQL Duplicates
 

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  1. POEliminating recursive SQL Duplicates
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    <p>I'm having issues with my script bringing back duplicate names and I'm not sure how to fix it. My script concatenates columns into a row. Basically I have admin names that I need listed in the same row and column of the building they are assigned. The admin names are listed multiple times and when I concatenate the rows it lists the admin name as follows (John Doe | John Doe). Point of Contact and list sometimes contain different names. I need to exclude the duplicate names in the list. I have attached a screen shot of the current and desired results. Using a db2 database but not sure of the version. Your help is appreciated.</p> <pre><code> WITH /***************************************************** *** The cte was used to generate test data easily. *** *****************************************************/ sample_data ( rownum, project_id , project_name , name_last , name_first, point_of_contact, building_id, building_name, hours_used, hours_to_use, percentage_used, capability, bucket_a, bucket_b, bucket_c ) AS ( VALUES (1, 10 , 'ELITE', 'Gamb', 'Susan', 'Susan Gamb | Amber Jones', 2, 'Main' , 80, 0, 1.0, 6000, 12000, 9600, 5100) , (2, 10 , 'ELITE', 'Gamb', 'Susan', 'Susan Gamb | Amber Jones', 2 , 'Main', 80, 0, 1.0, 7000, 12500, 8000, 4000) , (3, 10 , 'ELITE', 'Jones', 'Amber', 'Susan Gamb | Amber Jones', 2, 'Main', 80, 0, 1.0, 6000, 12000, 9600, 5100) , (4, 10 , 'ELITE', 'Jones', 'Amber', 'Susan Gamb | Amber Jones', 2, 'Main', 80, 0, 1.0, 7000, 12500, 8000, 4000) , (1, 10 , 'ELITE', 'Gamb', 'Susan', 'Susan Gamb | Amber Jones', 6 ,'Warehouse', 40, 40, .5, 6000, 12500, 9600, 5100) , (2, 10 , 'ELITE', 'Gamb', 'Susan', 'Susan Gamb | Amber Jones', 6, 'Warehouse' , 40, 40, .5, 7000, 12000, 8000, 4000) , (3, 10 , 'ELITE', 'Jones', 'Amber', 'Susan Gamb | Amber Jones', 6, 'Warehouse' , 40, 40, .5, 6000, 12500, 9600, 5100) , (4, 10 , 'ELITE', 'Jones', 'Amber', 'Susan Gamb | Amber Jones', 6, 'Warehouse' , 40, 40, .5, 6000, 12000, 8000, 4000 ) , (1, 1040 , 'ROADRUNNER', 'Sugar', 'Paul', 'Paul Sugar | Rob Brown', 2 , 'Main', 60, 20, .75, 5000, 1000, 1200, 4100 ) , (2, 1040 , 'ROADRUNNER', 'Sugar', 'Paul', 'Paul Sugar | Rob Brown', 2, 'Main', 60, 20, .75, 4000, 1500, 1000, 3000) , (3, 1040 , 'ROADRUNNER', 'Brown', 'Rob', 'Paul Sugar | Rob Brown', 2, 'Main', 60, 20, .75, 4500, 2000, 1200, 4100) , (4, 1040 , 'ROADRUNNER', 'Brown', 'Rob', 'Paul Sugar | Rob Brown', 2, 'Main', 60, 20, .75, 4000, 1500, 1000, 3000) , (1, 1040 , 'ROADRUNNER', 'Sugar', 'Paul', 'Paul Sugar | Rob Brown', 6 , 'Warehouse', 60, 20, .75, 4500, 2000, 1200, 4100) , (2, 1040 , 'ROADRUNNER', 'Sugar', 'Paul', 'Paul Sugar | Rob Brown', 6, 'Warehouse', 60, 20, .75, 4000, 1500, 1000, 3000) , (2, 1040 , 'ROADRUNNER', 'Brown', 'Rob', 'Paul Sugar | Rob Brown', 6, 'Warehouse', 60, 20, .75, 4500, 2000, 1200, 4100 ) , (3, 1040 , 'ROADRUNNER', 'Brown', 'Rob', 'Paul Sugar | Rob Brown', 6, 'Warehouse', 60, 20, .75, 4000, 1500, 1000, 3000) ) , t2(PROJECT_ID, LIST, POINT_OF_CONTACT, PROJECT_NAME, BUILDING_ID, BUILDING_NAME, HOURS_USED, HOURS_TO_USE, PERCENTAGE_USED, CAPABILITY, BUCKET_A, BUCKET_B, BUCKET_C, cnt) AS ( SELECT PROJECT_ID, VARCHAR(NAME_FIRST CONCAT ' ' CONCAT NAME_LAST, 6000), POINT_OF_CONTACT, PROJECT_NAME, BUILDING_ID, BUILDING_NAME, HOURS_USED, HOURS_TO_USE, PERCENTAGE_USED, CAPABILITY, BUCKET_A, BUCKET_B, BUCKET_C, 1 FROM SAMPLE_DATA WHERE rowNum = 1 UNION ALL SELECT t2.PROJECT_ID, t2.list || ' | ' || SAMPLE_DATA.NAME_FIRST CONCAT ' ' CONCAT SAMPLE_DATA.NAME_LAST, SAMPLE_DATA.POINT_OF_CONTACT, SAMPLE_DATA.PROJECT_NAME, SAMPLE_DATA.BUILDING_ID, SAMPLE_DATA.BUILDING_NAME, SAMPLE_DATA.HOURS_USED, SAMPLE_DATA.HOURS_TO_USE, SAMPLE_DATA.PERCENTAGE_USED, SAMPLE_DATA.CAPABILITY, SAMPLE_DATA.BUCKET_A, SAMPLE_DATA.BUCKET_B, SAMPLE_DATA.BUCKET_C, t2.cnt + 1 FROM t2, SAMPLE_DATA WHERE t2.PROJECT_ID = SAMPLE_DATA.PROJECT_ID AND t2.BUILDING_ID = SAMPLE_DATA.BUILDING_ID AND t2.cnt + 1 = SAMPLE_DATA.rowNum ) SELECT PROJECT_ID, PROJECT_NAME, POINT_OF_CONTACT, BUILDING_ID, BUILDING_NAME, HOURS_USED, HOURS_TO_USE, PERCENTAGE_USED, CAPABILITY, BUCKET_A, BUCKET_B, BUCKET_C, list FROM t2 WHERE ( PROJECT_ID, BUILDING_ID, cnt ) IN ( SELECT PROJECT_ID, BUILDING_ID, MAX(rowNum) FROM SAMPLE_DATA GROUP BY PROJECT_ID, BUILDING_ID ) order by PROJECT_NAME </code></pre> <p>Desired Results: <img src="https://i.stack.imgur.com/XvVQN.png" alt="enter image description here"></p>
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    1. COcan you include some sample data in SQL Fiddle? That will allow us to test any modifications we make.
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    2. COSQL Fiddle does not offer db2
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    3. COAh. That will make this harder. You will just need to try a DISTINCT or GROUP BY to eliminate duplicates.
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      1. USVulcronos
 

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