Data Warehousing and NoSQL
... More subtle: An Impedance Mismatch – We create logical structures in memory and then rip them apart to stick it in an RDBMS – The RDBMS data model often disjoint from its intended use (Normalisation sucks sometimes) ...
... More subtle: An Impedance Mismatch – We create logical structures in memory and then rip them apart to stick it in an RDBMS – The RDBMS data model often disjoint from its intended use (Normalisation sucks sometimes) ...
Heterogenous XML-based Data Integration
... What architecture can best accommodate my present and future needs ? ...
... What architecture can best accommodate my present and future needs ? ...
ppt slides
... in the database that, if joined, might contain rows having all keywords. The resulting relation will contain all potential rows having all keywords specified in the query. If we view the schema graph G as an undirected graph, this step enumerates join trees, i.e., subtrees of G such that: (a) the le ...
... in the database that, if joined, might contain rows having all keywords. The resulting relation will contain all potential rows having all keywords specified in the query. If we view the schema graph G as an undirected graph, this step enumerates join trees, i.e., subtrees of G such that: (a) the le ...
Data storage overview SQLite databases
... SQLite Databases 1 • For more complex data structures, a database provides a quicker and more flexible access method than flat files or shared preferences • SQLite provides full relational database capability utilizing SQL commands • Each application that uses SQLite has its own instance of the dat ...
... SQLite Databases 1 • For more complex data structures, a database provides a quicker and more flexible access method than flat files or shared preferences • SQLite provides full relational database capability utilizing SQL commands • Each application that uses SQLite has its own instance of the dat ...
Access.T01
... • A collection of related tables is called a database, or a relational database • You connect the records in the separate tables through a common field • A primary key is a field, or a collection of fields, whose values uniquely identify each record in a table • When you include the primary key from ...
... • A collection of related tables is called a database, or a relational database • You connect the records in the separate tables through a common field • A primary key is a field, or a collection of fields, whose values uniquely identify each record in a table • When you include the primary key from ...
COMP5111 Database Systems and Management
... a) design database solutions to solve common business problems; b) evaluate the effectiveness of specific database solutions in solving business problems; and c) articulate the organizational impact of database solutions. Overview of Database Management and Architecture Relational DBMS: Entity-r ...
... a) design database solutions to solve common business problems; b) evaluate the effectiveness of specific database solutions in solving business problems; and c) articulate the organizational impact of database solutions. Overview of Database Management and Architecture Relational DBMS: Entity-r ...
RFGex Prediction 2009 pt1
... In most organizations, upwards of 80% of Big Data is in the form of "unstructured" text or content, including documents, emails, images, instant messages, video and voice clips. RDBMSs were designed to manage "structured" data in manageable fields, rows and columns such as dates, social security num ...
... In most organizations, upwards of 80% of Big Data is in the form of "unstructured" text or content, including documents, emails, images, instant messages, video and voice clips. RDBMSs were designed to manage "structured" data in manageable fields, rows and columns such as dates, social security num ...
AlwaysOn Design Patterns and Lessons Learned.ppt
... • Requirements for AG between two FCIs: • DIFFERENT instance names between FCIs • Recommendation for all AG deployments: • SAME file path across all FCIs • Solution: Be sure to use a path for Data and Logs that is always the same for all instances participating in an AG. File path recommendations is ...
... • Requirements for AG between two FCIs: • DIFFERENT instance names between FCIs • Recommendation for all AG deployments: • SAME file path across all FCIs • Solution: Be sure to use a path for Data and Logs that is always the same for all instances participating in an AG. File path recommendations is ...
slides
... revoke select on department from Amit, Satoshi cascade; revoke select on department from Amit, Satoshi restrict; ...
... revoke select on department from Amit, Satoshi cascade; revoke select on department from Amit, Satoshi restrict; ...
Migrating AIMS SQL between MS SQL servers
... The first line should say “Server=\” where
must be the correct name for the machine where SQL Server is running, and
is the name of the SQL Server instance where the AIMS database
is installed. In the above example, the machine is ‘ROBERTDESKTOP’ and
the insta ...
... The first line should say “Server=
What is Advantage?
... Advantage is specifically designed to be embedded with business applications Advantage is designed to be low-cost and low-maintenance ...
... Advantage is specifically designed to be embedded with business applications Advantage is designed to be low-cost and low-maintenance ...
SQL Constraints and Triggers
... – Update a tuple to a bogus foreign key value – Delete a tuple in the referenced table with the referenced foreign key value – Update a tuple in the referenced table that changes the referenced foreign key value ...
... – Update a tuple to a bogus foreign key value – Delete a tuple in the referenced table with the referenced foreign key value – Update a tuple in the referenced table that changes the referenced foreign key value ...
Techwave_2005_am18a_ASAInternals
... SELECT s.prod_id, o.sales_rep, SUM(s.quantity) as total_quantity, SUM(s.quantity * p.unit_price) as total_sales FROM sales_order o KEY JOIN sales_order_items s KEY JOIN product p GROUP BY s.prod_id, o.sales_rep HAVING total_sales = (SELECT FIRST SUM(s2.quantity * p2.unit_price) as sum_sales FROM sal ...
... SELECT s.prod_id, o.sales_rep, SUM(s.quantity) as total_quantity, SUM(s.quantity * p.unit_price) as total_sales FROM sales_order o KEY JOIN sales_order_items s KEY JOIN product p GROUP BY s.prod_id, o.sales_rep HAVING total_sales = (SELECT FIRST SUM(s2.quantity * p2.unit_price) as sum_sales FROM sal ...
Operational Database Offload
... Hadoop RDBMS is a natural choice to replace traditional relational databases like Oracle and IBM DB2, which struggle with cost or scaling issues. Designed to meet the needs of real‐time, data‐driven businesses, Splice Machine is the only Hadoop RDBMS. Splice Machine offers an ANSI‐SQL database w ...
... Hadoop RDBMS is a natural choice to replace traditional relational databases like Oracle and IBM DB2, which struggle with cost or scaling issues. Designed to meet the needs of real‐time, data‐driven businesses, Splice Machine is the only Hadoop RDBMS. Splice Machine offers an ANSI‐SQL database w ...
Design and Implementation of Spiral Database For Health Centers
... understanding of relational data modeling, its purpose, its nature, and the standards used in creating relational data model. Relational databases are the most popular database management systems in the world and are supported by a variety of vendor implementations. Majority of the practical tasks i ...
... understanding of relational data modeling, its purpose, its nature, and the standards used in creating relational data model. Relational databases are the most popular database management systems in the world and are supported by a variety of vendor implementations. Majority of the practical tasks i ...
SAM_DBA_CV
... Performance and tuning setup for all the database engines to get a continuous performance improvement, as well as maintenance tasks (update statistics, reorgs and rebuilds, weekly reports of performance etc.) Benchmark between Linux Enterprise 4 and Windows 2003 Enterprise Operating Systems (32 and ...
... Performance and tuning setup for all the database engines to get a continuous performance improvement, as well as maintenance tasks (update statistics, reorgs and rebuilds, weekly reports of performance etc.) Benchmark between Linux Enterprise 4 and Windows 2003 Enterprise Operating Systems (32 and ...
IsolationLevels_
... Default for SQL Server Does not allow for dirty reads Takes shared locks to prevent updating of data while the data is being accessed only when RCSI is turned off ...
... Default for SQL Server Does not allow for dirty reads Takes shared locks to prevent updating of data while the data is being accessed only when RCSI is turned off ...
Extracting UML/OCL Integrity Constraints and Derived Types from Relational Databases
... clause. The mapping is basically a direct mapping since the references to the column names in the WHERE are replaced by the corresponding attribute and association names. SQL functions are translated into their OCL counterparts (if existing, otherwise new OCL operations must be previously defined, ...
... clause. The mapping is basically a direct mapping since the references to the column names in the WHERE are replaced by the corresponding attribute and association names. SQL functions are translated into their OCL counterparts (if existing, otherwise new OCL operations must be previously defined, ...
- Lotus Live Projects
... introduce TrustedDB, an outsourced database prototype that allows clients to execute SQL queries with privacy and under regulatory compliance constraints by leveraging server-hosted, tamper-proof trusted hardware in critical query processing stages, thereby removing any limitations on the type of su ...
... introduce TrustedDB, an outsourced database prototype that allows clients to execute SQL queries with privacy and under regulatory compliance constraints by leveraging server-hosted, tamper-proof trusted hardware in critical query processing stages, thereby removing any limitations on the type of su ...