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Questions tagged common-table-expression

18 questions

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52
votes
6
answers

Using the WITH clause in an INSERT statement

sql sql-server common-table-expression with-clause
asked 2013-03-22T15:37:58.007
13
votes
1
answers

PostgreSql -> CTE + UPDATE + DELETE -> not expected result, why?

postgresql common-table-expression
asked 2012-12-10T18:14:10.367
8
votes
1
answers

T-SQL CTE materializing techniques not working on SQL Server 2012

sql-server t-sql sql-server-2012 common-table-expression materialized
asked 2012-10-26T15:38:20.210
35
votes
1
answers

PostgreSQL nested CTE and UNION

sql postgresql union common-table-expression
asked 2012-07-31T13:30:16.570
100
votes
4
answers

Update records in table from CTE

sql sql-server t-sql common-table-expression
asked 2012-07-19T14:01:07.997
331
votes
4
answers

Is there a performance difference between CTE , Sub-Query, Temporary Table or Table Variable?

sql sql-server t-sql subquery common-table-expression
asked 2012-06-23T12:36:14.007
28
votes
4
answers

How to transform a MSSQL CTE query to MySQL?

mysql sql-server common-table-expression adjacency-list
asked 2012-01-12T10:29:45.663
10
votes
2
answers

Simulating CTE recursion in C#

c# sql entity-framework-4 recursion common-table-expression
asked 2011-06-03T09:10:28.170
278
votes
9
answers

When to use Common Table Expression (CTE)

sql sql-server t-sql common-table-expression
asked 2011-01-19T21:06:01.780
59
votes
5
answers

Adding an INDEX to a CTE

sql-server-2008 common-table-expression
asked 2010-10-22T10:31:49.877
39
votes
2
answers

How can I reuse a Common Table Expression

sql sql-server common-table-expression
asked 2009-11-26T06:58:19.467
23
votes
4
answers

why can't I access my CTE after I used it once?

sql sql-server common-table-expression
asked 2009-10-19T20:37:40.117
33
votes
5
answers

How can I use if statement after a CTE (SQL Server 2005)

sql sql-server sql-server-2005 t-sql common-table-expression
asked 2009-10-13T03:42:43.143
168
votes
7
answers

How do you use the "WITH" clause in MySQL?

mysql common-table-expression with-clause subquery-factoring mysql-8.0
asked 2009-09-05T05:45:26.760
192
votes
12
answers

Which are more performant, CTE or temporary tables?

sql-server performance sql-server-2008 temp-tables common-table-expression
asked 2009-03-27T16:28:49.077
102
votes
2
answers

How can I have multiple common table expressions in a single SELECT statement?

sql sql-server sql-server-2008 t-sql common-table-expression
asked 2009-02-25T00:30:05.857
9
votes
4
answers

Recursive SQL CTE's and Custom Sort Ordering

sql linq t-sql recursion common-table-expression
asked 2009-02-19T16:20:14.980
12
votes
6
answers

What are the advantages/disadvantages of using a CTE?

sql sql-server common-table-expression
asked 2008-09-10T14:22:33.337