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SQL query to find record with ID not in another table
I have two tables with binding primary key in database and I desire to find a disjoint set between them. For example,
6 Ans...
Filter dataframe rows if value in column is in a set list of values [duplicate]
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Use the isin method:
rpt[rpt['STK_ID'].isin(stk_list)]
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Does the join order matter in SQL?
Disregarding performance, will I get the same result from query A and B below? How about C and D?
4 Answers
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Select first row in each GROUP BY group?
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On Oracle 9.2+ (not 8i+ as originally stated), SQL Server 2005+, PostgreSQL 8.4+, DB2, Firebird 3.0+, Teradata, Sybase, Vertica:
WITH summary AS (
SELECT p.id,
p.customer,
p.total,
ROW_NUMBER() OVER(PARTITION BY p.c...
How to get ID of the last updated row in MySQL?
How do I get the ID of the last updated row in MySQL using PHP?
12 Answers
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Rails Model find where not equal
How can I find records in my database on a not equal condition? I have this now, but is there a fancy rails-speak way of doing it?
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In which case do you use the JPA @JoinTable annotation?
In which case do you use the JPA @JoinTable annotation?
5 Answers
5
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Android - Set fragment id
... I set a Fragment 's Id so that I can use getSupportFragmentManager().findFragmentById(R.id.--) ?
7 Answers
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How update the _id of one MongoDB Document?
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You cannot update it. You'll have to save the document using a new _id, and then remove the old document.
// store the document in a variable
doc = db.clients.findOne({_id: ObjectId("4cc45467c55f4d2d2a000002")})
// set a new _id on the document
doc._id = ObjectId("4c8a331bda76c55...
List of lists changes reflected across sublists unexpectedly
I needed to create a list of lists in Python, so I typed the following:
14 Answers
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