Results 291 to 300 of about 5,171,918 (330)

Summary-Table-By-Example: A database query language for manipulating summary data

1984 IEEE First International Conference on Data Engineering, 1984
In this paper we introduce the notion of summary table and a high level nonprocedural language, Summary-Table-By-Example (STBE) to manipulate summary data in databases. STBE is similar to Query-by-Example in that it uses graphical two-dimensional objects
Z. Ozsoyoglu, G. Ozsoyoglu
semanticscholar   +1 more source

Managing Multiple Database Tables

2010
The previous chapter showed you how to use INNER JOIN and LEFT JOIN to retrieve information stored in multiple tables. You also learned how to link existing tables by adding an extra column to the child table and updating each record individually to insert a foreign key.
openaire   +2 more sources

Creating Database and Tables

2012
When developing applications, you’ll often be required to create a database and add tables to it, rather than just using an existing database and table objects. This chapter is about creating a fresh database and then creating the tables that it contains.
openaire   +2 more sources

Querying database tables

1995
This example is going to query the census table and display first of all a list of the names of the people in the village of Denton who are over 21 and secondly all those females who live in the village who are over 21.
openaire   +2 more sources

An analysis of semantic overload in database access systems using multi-table query formulation

, 1997
Theory suggests that semantic overload in database representations and query languages may be a significant contributing factor to difficulties in end-user access to corporate databases.
Sangkyu Rho, S. March
semanticscholar   +1 more source

Creating Databases Using Tables

2011
Packed with more than 16,000 columns and more than 1 million rows, each Excel worksheet has enough space to contain serious amounts of data—so it’s great for creating a database to store information and quickly find the items you need.
openaire   +2 more sources

Creating and Using Database Tables

2020
In this chapter, you will learn how to create and use Access database tables. You’ll define field types and properties, use the AutoNumber field type to create a primary key, and find out how a table behaves as records are inserted and deleted. You will also learn about record locks and how Microsoft Access manages them.
openaire   +2 more sources

Pregnancy and Laboratory Studies: A Reference Table for Clinicians

Obstetrics and Gynecology, 2009
OBJECTIVE: To establish normal reference ranges during pregnancy for common laboratory analytes. DATA SOURCES: We conducted a comprehensive electronic database review using PUBMED and MEDLINE databases.
Mina Abbassi-Ghanavati, Laura G. Greer, Gary F. Cunningham   +2 more
semanticscholar   +1 more source

A universal table model for categorical databases

Information Sciences, 1989
Abstract A consistent categorical database can be viewed as a single contingency table by taking the maximum-entropy extension of its base tables. Such a view, here called the universal table model , is needed to answer a user who wishes “cross-classified” data, that is, categorical data resulting from the combination of information contained in ...
openaire   +2 more sources

EPiC Database 2019 Summary Table

2019
The Environmental Performance in Construction (EPiC) database is a free resource that contains embodied environmental flow coefficients for over 250 construction materials using a comprehensive hybrid life cycle inventory approach.The Summary Table is extracted from the full report that is available at https://doi.org/10.26188 ...
Crawford, Robert, Stephan, André, Prideaux, Fabian   +2 more
openaire   +2 more sources