SQL query that returns columns form table A plus a bit column that specifies with the PK of table A exists in table B



How can I write an efficient SQL query that returns columns form table A plus a bit column that specifies whether the PK of table A exists in table B? I am using MS SQLServer 2005. Thanks.


Related to : SQL query that returns columns form table A plus a bit column that specifies with the PK of table A exists in table B
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I have the following association:


class Resource < ActiveRecord::Base
belongs_to :author


def self.search(search)
where('title ILIKE ? OR description ILIKE ?', "%#{search}%","%#{search}%")
end

I need to search for the author name as in the following:


where('title ILIKE ? OR description ILIKE ? OR author_name ILIKE ?', "%#{search}%","%#{search}%","%#{search}%" )

end


This obviously won't work as I have the author_id in the Resource table and not the author name field.


I'm a NOOB so any help apprecia

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I'm facing a situation where a customers table with more that 150000 records have a column with phone numbers which contains more than one values (phones) separated by spaces, commas, dashes, dots, etc. The original column values are varchar type max 30. I need a way to check these values and split them into equal columns of a new table and then normalize them by removing any special characters from inside them. None of the new columns values should have more that 10 digits.


Find below a select query results of the current table which clearly depicts the current mess. Column No_ (ΠΕxxxxxx) is the Customer Unique Identifier. Column Phone

SQL Get specific columns from one table and all rows from a joined table in one query
Databases

This may have been asked before and I just can't find it.


I have a one to many relationship in the database on a few tables.


table1
table2
table3

table2 - table3 is the 1-many relationship


here's a mock of what I have:


select
table1.id
table1.Column
table2.Column2
-- I want all entries here from table 3 here as well
From table1 t1
left outer join table2 t2 on t2.ID = t1.ID
left outer join join table3 t3 on t3.ID2 = t2.ID2

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SQL Query for single table, compare table columns values
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i have one table (A) which has column caseid and citin ,
caseid can have same citin ,
i want a query where i want particular citin which has 2 or more caseid
I tried


select a.caseid from A as a
where citin in (select citin, caseid from A as c where c.caseid != a.caseid )

Can someone help ?


SQL query that returns columns form table A plus a bit column that specifies with the PK of table A exists in table B
Databases

How can I write an efficient SQL query that returns columns form table A plus a bit column that specifies whether the PK of table A exists in table B? I am using MS SQLServer 2005. Thanks.


Write a SQL query to find those values from column A in table X that are NOT present in column B of table Y
Databases

Write a SQL query to find those values from column A in table X that are NOT present in column B of table Y.


update: the query is taking too long with not in(more than 5 minutes, i didn't wait for it to complete) The column B in table Y is a primary key.


update: im using oracle. The table size is in millions(rows) for both tables. Of course, I'm using another WHERE clause, which means I'm comparing about 500,000 rows of table X with millions of rows in table Y



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