Data: Database: Database Management System (DBMS): Features
... Report: Report is an object of database, which can be an effective way to present your data in a printed format. ...
... Report: Report is an object of database, which can be an effective way to present your data in a printed format. ...
Document
... Seacoos netcdf convention (format, data dictionary of variable and attribute standard names) applied to provider in-situ and model data, screen-scraped data from outside sources. (30 Gigabytes since September 2004) Raster images(.png’s) copied to fileserver with timestamp and projection info collece ...
... Seacoos netcdf convention (format, data dictionary of variable and attribute standard names) applied to provider in-situ and model data, screen-scraped data from outside sources. (30 Gigabytes since September 2004) Raster images(.png’s) copied to fileserver with timestamp and projection info collece ...
SQL Server Database Object Naming Standard
... where possible (abbreviations should not normally be used, acronyms and common usage excepted); use the proper case for each word. The singular form is used to signify that we're talking about a set of related information. Examples: • Account • Employee • LineItem • CaseCalendar Special case excepti ...
... where possible (abbreviations should not normally be used, acronyms and common usage excepted); use the proper case for each word. The singular form is used to signify that we're talking about a set of related information. Examples: • Account • Employee • LineItem • CaseCalendar Special case excepti ...
DATA DEFINITION LANGUAGE - MUET-CRP
... As the name suggests, this language is used to define the various types of data in the database and their relationship with each other. FUNCTIONS OF DDL • Create tables, files, databases and data dictionaries. • Specify the storage structure of each table on disk. • Integrity constraints on various ...
... As the name suggests, this language is used to define the various types of data in the database and their relationship with each other. FUNCTIONS OF DDL • Create tables, files, databases and data dictionaries. • Specify the storage structure of each table on disk. • Integrity constraints on various ...
I*ve Got A SQL Server Database. Now What?
... Can be online or offline depending on version, edition and column data types Creates new indexes then drops old index Updates Statistics on index ...
... Can be online or offline depending on version, edition and column data types Creates new indexes then drops old index Updates Statistics on index ...
No Slide Title
... Why are Databases Better than Files? Multiple users can all use the same database, and have access to the current, up to the minute values for the data. To get that in a file system, you’d have to rewrite the file to disk after every transaction, then reread it again before every transaction. It’s e ...
... Why are Databases Better than Files? Multiple users can all use the same database, and have access to the current, up to the minute values for the data. To get that in a file system, you’d have to rewrite the file to disk after every transaction, then reread it again before every transaction. It’s e ...
Chapter 8
... Rule 8: Stable columns with few values are good candidates for bitmap indexes if the columns appear in WHERE conditions. Rule 9: Avoid indexes on combinations of columns. Most optimization components can use multiple indexes on the same table. ...
... Rule 8: Stable columns with few values are good candidates for bitmap indexes if the columns appear in WHERE conditions. Rule 9: Avoid indexes on combinations of columns. Most optimization components can use multiple indexes on the same table. ...
PHP meets MySQL - La Salle University
... • We checked the radio button (first in the row) to indicate that it is a primary key. • We chose the type to be CHAR which means that it can include letters (unlike a number) and must be of fixed length (unlike a varchar). ...
... • We checked the radio button (first in the row) to indicate that it is a primary key. • We chose the type to be CHAR which means that it can include letters (unlike a number) and must be of fixed length (unlike a varchar). ...
The Kimball Lifecycle - Doctor
... • Is a string of bits for each possible value – Each bit string has 1 bit for each row – Bit is set to 1 if the row has the value the bit string represents » For gender column, 3 bit strings represent “M”, “F”, and “?” – Much smaller than B-tree – Usually built on a single column ...
... • Is a string of bits for each possible value – Each bit string has 1 bit for each row – Bit is set to 1 if the row has the value the bit string represents » For gender column, 3 bit strings represent “M”, “F”, and “?” – Much smaller than B-tree – Usually built on a single column ...
InMemoryDataBases(IMDB)
... IMDBs lack durability property as they lose all stored information when the device loses power or is reset. Durability can be added to IMDBs via the following mechanisms: Snapshot files, or, checkpoint images, which record the state of the database after particular time interval. Transaction logging ...
... IMDBs lack durability property as they lose all stored information when the device loses power or is reset. Durability can be added to IMDBs via the following mechanisms: Snapshot files, or, checkpoint images, which record the state of the database after particular time interval. Transaction logging ...
Databases Concepts
... Today, even non-technical staff can use languages and tools to build little programs that use a database. Database Management Systems have all kinds of tools to develop custom application programs. The College’s MIS (Banner) is actually an application built on top of a Oracle Database. ...
... Today, even non-technical staff can use languages and tools to build little programs that use a database. Database Management Systems have all kinds of tools to develop custom application programs. The College’s MIS (Banner) is actually an application built on top of a Oracle Database. ...
General Index Design Guidelines SQL Server 2005 Experienced
... situation. For example, a physical telephone directory sorted alphabetically on last name will not expedite locating a person if all people in the city are named Smith or Jones. For more information about data distribution, see Index Statistics. Consider the order of the columns if the index will co ...
... situation. For example, a physical telephone directory sorted alphabetically on last name will not expedite locating a person if all people in the city are named Smith or Jones. For more information about data distribution, see Index Statistics. Consider the order of the columns if the index will co ...
Normalization
... • Entity – the subject to be modeled by the database file (table or relation) • Primary Key – the field value that uniquely identifies the entity entry (row, tuple, record); all other attributes are functionally dependent on it; can’t be null • Foreign Key – the field (attribute, column) that relate ...
... • Entity – the subject to be modeled by the database file (table or relation) • Primary Key – the field value that uniquely identifies the entity entry (row, tuple, record); all other attributes are functionally dependent on it; can’t be null • Foreign Key – the field (attribute, column) that relate ...
Relational Database
... To insert null value for a column, specify only the other columns or write null as the value Can specify DEFAULT as value if column has a default defined Can specify values for some columns, in any order, as long as values match order ...
... To insert null value for a column, specify only the other columns or write null as the value Can specify DEFAULT as value if column has a default defined Can specify values for some columns, in any order, as long as values match order ...
Query DIFF Utility
... Here's some SQL code from Eli Leiba that will all you to compare two tables -- say, table A and table B -- to determine if their content is the same. Assuming that A and B have the same structure, here's how it works. First, from set theory, recall that: ...
... Here's some SQL code from Eli Leiba that will all you to compare two tables -- say, table A and table B -- to determine if their content is the same. Assuming that A and B have the same structure, here's how it works. First, from set theory, recall that: ...
SQL
... datatype into a case insensitive character set first: WHERE name = ‘bob' COLLATE SQL_Latin1_General_CP1_CI_AS ...
... datatype into a case insensitive character set first: WHERE name = ‘bob' COLLATE SQL_Latin1_General_CP1_CI_AS ...
SQL
... datatype into a case insensitive character set first: WHERE name = ‘bob' COLLATE SQL_Latin1_General_CP1_CI_AS ...
... datatype into a case insensitive character set first: WHERE name = ‘bob' COLLATE SQL_Latin1_General_CP1_CI_AS ...
TableAdapters and TableAdapterManager
... The typical way to get data in/out of a strongly-typed DataSet One “DataAdapter” per table Has traditional Fill() and Update() methods Can be expanded with additional methods Concepts similar to that of stored procedures All queries located in one place ...
... The typical way to get data in/out of a strongly-typed DataSet One “DataAdapter” per table Has traditional Fill() and Update() methods Can be expanded with additional methods Concepts similar to that of stored procedures All queries located in one place ...
LM4 PowerPoints Slides
... Denormalized databases fair well under heavy read-load and when the application is read intensive. This is because of the following reasons: • The data is present in the same table so there is no need for any joins, hence the selects are very fast. • A single table with all the required data allows ...
... Denormalized databases fair well under heavy read-load and when the application is read intensive. This is because of the following reasons: • The data is present in the same table so there is no need for any joins, hence the selects are very fast. • A single table with all the required data allows ...