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Correlated subquery

In a SQL database query, a correlated subquery (also known as a synchronized subquery) is a subquery (a query nested inside another query) that uses… Expand
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Papers overview

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2019
2019
A new method for SQL query implementation in a parallel execution environment Apache Spark in a package mode was developed on the… Expand
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2015
2015
Recent OLAP systems, which are usually called HOLAP systems, are often developed using both NSM and DSM storages in a single… Expand
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2014
2014
We propose a logical framework to analyze complex predicates (those involving a subquery) in SQL. We propose a new operator in… Expand
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2014
2014
Preference database queries become more and more important in Data Warehousing or Decision Support Systems. In these environments… Expand
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2013
2013
A feature of PROC SQL which provides flexibility to SAS users is that of a SUBQUERY. A SUBQUERY is a query inside a query. A… Expand
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2007
2007
The past couple of decades have seen a significant amount of research directed towards data warehousing and efficient processing… Expand
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2007
2007
This chapter explores more advanced facets of efficient structured query language (SQL), including joins, subqueries, and various… Expand
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2005
2005
The largest databases in use today are so large that answering a query exactly can take minutes, hours, or even days. One way to… Expand
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2003
2003
Database queries often take the form of correlated SQL queries. Correlation refers to the use of values from the outer query… Expand
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