Applies to:SQL Server The Query and View Designer provides built-in features for some query types--Select, Insert Results, Insert Values, Update, Delete, and Make Table--and also supports UNION, Full-text search, and CASE expression queries. ...
Performance tips from Chapter 14 — Improving SQL Server Performance related to joins:“Try to avoid nullable foreign key columns to limit the amount of outer joins that might need to be written. Outer joins tend to be more expensive to process than inner joins. ” “Be sure to create an ...
Using Microsoft® SQL Server™ 2000 Analysis Services, you can easily create OLAP cubes and dimensions from a variety of data sources. In SQL Server 7.0 OLAP Services, you only need to make a few choices to build a dimension, but there are some limitations to the types of dimension char...
NATIONAL CHAR (or its equivalent short form, NCHAR) is the ANSI SQL way to define that a CHAR column should use the default CHARACTER set. This is the default in MySQL. CHAR is shorthand for CHARACTER. MySQL allows you to create a column of type CHAR(0). This is mainly useful when ...
Charts are an essential part of working with data, as they are a way to condense large amounts of data into an easy to understand format. Visualizations of data can bring out insights to someone looking at the data for the first time, as well as convey findings to others who won’t ...
Explore MySQL TEXT data types, from TINYTEXT to LONGTEXT, and master storage size limits and application tips for optimized database structure.
Object types are a generalization of the built-in datatypes found in most programming languages. PL/SQL provides a variety of built-in scalar and composite datatypes, each of which is associated with a set of predefined operations. Ascalartype (such asCHAR) has no internal components. Acomposit...
A view that joins member tables on the same instance of SQL Server is a local partitioned view. Note The preferred method for partitioning data locally is through partitioned tables. For more information, see Partitioned Tables and Indexes. When a view joins data from tables across servers, ...
rows and furthermore is created on several joins it requires a lot of resources. The result is however very nice, as it gives me dimension-values that holds data only. But it is ok to show all dimension-values even though there is no data. So I tried to change the join type in the...
an SQL statement (or its equivalent using API functions for MONGO) enabling it to execute the original query. To enhance performance, it is necessary to have the remote data source do the maximum processing. This is needed in particular to reduce the amount of data returned by the data ...