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 Help in SQL Query
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Posted on 05-02-17 6:01 AM     Reply [Subscribe]
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Hi SQL Gurus,

I need to join two tables say Table I and Table W

Table I is like below

Numbers Values
1 A
1 B
2 C
3 D

Table W is Like Below
Numbers Boolean
1 Yes
1 Yes
2 Yes
3 Yes

I need to query to join Table I and W where Boolean value is Yes in Table W but there is no D in Table I in Oracle database. The answer would be
Can someone help me get a query?

Posted on 05-02-17 7:45 AM     [Snapshot: 61]     Reply [Subscribe]
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Hey, your requirement is confusing. What does it mean by "where Boolean value is Yes in Table W but there is no D in Table I in Oracle database"

Posted on 05-02-17 7:45 AM     [Snapshot: 57]     Reply [Subscribe]
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If there is no value D in table I then when you join both the tables on numbers, you will automatically get the those two numbers as you distinct them. Not sure, what your question is actually?
Posted on 05-02-17 8:41 AM     [Snapshot: 108]     Reply [Subscribe]
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First join like this:
select i.Numbers as Number from I i join W w on i.Numbers = w.Numbers
Then use filter to get the record you need:
where w.Boolean="Yes" and i.Values != 'D'

Actual query depends on database you are using.
Posted on 05-02-17 9:29 AM     [Snapshot: 142]     Reply [Subscribe]
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try this..very generic

select * from i where values  <> 'D' and numbers in (select numbers from w where boolean = 'Y')

- Jaxnepali
Last edited: 02-May-17 09:29 AM

Posted on 05-02-17 12:11 PM     [Snapshot: 237]     Reply [Subscribe]
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There is an online application for testing and sharing SQL queries called
Here's a quick fiddle I created for you.!9/393cc/4

Posted on 05-02-17 12:34 PM     [Snapshot: 250]     Reply [Subscribe]
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are you interested in basic to advance level SQL training please contact

New QA training session starting this wednesday( 05/02/2017)
Posted on 05-02-17 12:49 PM     [Snapshot: 274]     Reply [Subscribe]
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How much do you charge for your trainings?

Thank you,

Dania Chhetri
Senior Resource Manager
Geek IT Solution LLC
Direct: 972-358-3131
Linkedin: Dania Chhetri
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Posted on 05-02-17 1:29 PM     [Snapshot: 303]     Reply [Subscribe]
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zero cost....... thousands to benefit ( to candidates)...... 
Last edited: 02-May-17 01:29 PM
Last edited: 02-May-17 01:31 PM


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