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- Database_index abstract "A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure. Indexes are used to quickly locate data without having to search every row in a database table every time a database table is accessed. Indexes can be created using one or more columns of a database table, providing the basis for both rapid random lookups and efficient access of ordered records.An index is a copy of select columns of data from a table that can be searched very efficiently that also includes a low-level disk block address or direct link to the complete row of data it was copied from. Some databases extend the power of indexing by letting developers create indices on functions or expressions. For example, an index could be created on upper(last_name), which would only store the upper case versions of the last_name field in the index. Another option sometimes supported is the use of partial indices, where index entries are created only for those records that satisfy some conditional expression. A further aspect of flexibility is to permit indexing on user-defined functions, as well as expressions formed from an assortment of built-in functions.".
- Database_index wikiPageID "1711076".
- Database_index wikiPageLength "15198".
- Database_index wikiPageOutDegree "43".
- Database_index wikiPageRevisionID "697096188".
- Database_index wikiPageWikiLink B+_tree.
- Database_index wikiPageWikiLink B-tree.
- Database_index wikiPageWikiLink Big_O_notation.
- Database_index wikiPageWikiLink Bit_array.
- Database_index wikiPageWikiLink Bitwise_operation.
- Database_index wikiPageWikiLink Block_(data_storage).
- Database_index wikiPageWikiLink Category:Data_structures.
- Database_index wikiPageWikiLink Category:Database_index_techniques.
- Database_index wikiPageWikiLink Category:Databases.
- Database_index wikiPageWikiLink Column_(database).
- Database_index wikiPageWikiLink Composite_index_(database).
- Database_index wikiPageWikiLink Computer_file.
- Database_index wikiPageWikiLink Concurrency_control.
- Database_index wikiPageWikiLink Data_structure.
- Database_index wikiPageWikiLink Database.
- Database_index wikiPageWikiLink Expression_(computer_science).
- Database_index wikiPageWikiLink Full_table_scan.
- Database_index wikiPageWikiLink Hash_table.
- Database_index wikiPageWikiLink Index_locking.
- Database_index wikiPageWikiLink Linear_search.
- Database_index wikiPageWikiLink Lookup_table.
- Database_index wikiPageWikiLink Microsoft_SQL_Server.
- Database_index wikiPageWikiLink Partial_index.
- Database_index wikiPageWikiLink Pointer_(computer_programming).
- Database_index wikiPageWikiLink Record_(computer_science).
- Database_index wikiPageWikiLink Relational_database.
- Database_index wikiPageWikiLink SQL.
- Database_index wikiPageWikiLink Sargable.
- Database_index wikiPageWikiLink Search_engine_indexing.
- Database_index wikiPageWikiLink Self-balancing_binary_search_tree.
- Database_index wikiPageWikiLink Table_(database).
- Database_index wikiPageWikiLink Time_complexity.
- Database_index wikiPageWikiLink Tree_(data_structure).
- Database_index wikiPageWikiLink User-defined_function.
- Database_index wikiPageWikiLink Wildcard_character.
- Database_index wikiPageWikiLinkText "Database index".
- Database_index wikiPageWikiLinkText "Database index#Clustered".
- Database_index wikiPageWikiLinkText "Database index#Non-clustered".
- Database_index wikiPageWikiLinkText "Index Column".
- Database_index wikiPageWikiLinkText "Index".
- Database_index wikiPageWikiLinkText "covering index".
- Database_index wikiPageWikiLinkText "database index".
- Database_index wikiPageWikiLinkText "database".
- Database_index wikiPageWikiLinkText "index".
- Database_index wikiPageWikiLinkText "indexed".
- Database_index wikiPageWikiLinkText "indexes".
- Database_index wikiPageWikiLinkText "indexing".
- Database_index wikiPageWikiLinkText "indices".
- Database_index wikiPageWikiLinkText "key".
- Database_index wikiPageUsesTemplate Template:Databases.
- Database_index wikiPageUsesTemplate Template:Main.
- Database_index wikiPageUsesTemplate Template:Refimprove.
- Database_index wikiPageUsesTemplate Template:Reflist.
- Database_index subject Category:Database_index_techniques.
- Database_index subject Category:Databases.
- Database_index hypernym Structure.
- Database_index type Building.
- Database_index type Datum.
- Database_index type Structure.
- Database_index type Technique.
- Database_index comment "A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure. Indexes are used to quickly locate data without having to search every row in a database table every time a database table is accessed.".
- Database_index label "Database index".
- Database_index sameAs Q580427.
- Database_index sameAs فهرس_قاعدة_بيانات.
- Database_index sameAs Índex_(base_de_dades).
- Database_index sameAs Index_(databáze).
- Database_index sameAs Datenbankindex.
- Database_index sameAs Indekso_(datumbazo).
- Database_index sameAs Índice_(base_de_datos).
- Database_index sameAs فهرست_(پایگاه_داده).
- Database_index sameAs Indeksointi.
- Database_index sameAs Index_(base_de_données).
- Database_index sameAs אינדקס_(מחשב).
- Database_index sameAs Indeks_(baza_podataka).
- Database_index sameAs Ինդեքս.
- Database_index sameAs Indice_(basi_di_dati).
- Database_index sameAs 索引_(データベース).
- Database_index sameAs Қатынас_құру_индексі.
- Database_index sameAs 인덱스_(데이터베이스).
- Database_index sameAs Indekss_(datubāze).
- Database_index sameAs Index_(database).
- Database_index sameAs Indeksowanie.
- Database_index sameAs Índice_(estruturas_de_dados).
- Database_index sameAs m.05q990.
- Database_index sameAs Индекс_(базы_данных).
- Database_index sameAs Veritabanı_dizini.
- Database_index sameAs Індекс_таблиці_бази_даних.
- Database_index sameAs Q580427.
- Database_index sameAs 数据库索引.
- Database_index wasDerivedFrom Database_index?oldid=697096188.
- Database_index isPrimaryTopicOf Database_index.