Database Application Development
... Embedded SQL allows execution of parametrized static queries within a host language Dynamic SQL allows execution of completely adhoc queries within a host language Cursor mechanism allows retrieval of one record at a time and bridges impedance mismatch between host language and SQL APIs such a ...
... Embedded SQL allows execution of parametrized static queries within a host language Dynamic SQL allows execution of completely adhoc queries within a host language Cursor mechanism allows retrieval of one record at a time and bridges impedance mismatch between host language and SQL APIs such a ...
DB TIME
... DB Time (DBT) = sum over all sessions of time spent in a call. A call could be executing SQL background work DBWR writing blocks LGWR writing redo ...
... DB Time (DBT) = sum over all sessions of time spent in a call. A call could be executing SQL background work DBWR writing blocks LGWR writing redo ...
Install Guide for SQL Server 2008 - DaaS (Data as a Service) offering
... installation of SQL Server, by default, will give you database privileges. If you are working with an existing SQL Server installation, then it is possible that the security options have been reconfigured. In this case, you may need to consult with your Database Administrator to ensure that you have ...
... installation of SQL Server, by default, will give you database privileges. If you are working with an existing SQL Server installation, then it is possible that the security options have been reconfigured. In this case, you may need to consult with your Database Administrator to ensure that you have ...
Chapter 8
... – SQL statement is not known in advance, but instead is generated at run time – Program can generate SQL statements at runtime that are required to respond to ad hoc queries – Attribute list and condition are not known until end user specifies them – Tends to be much slower than static SQL – Require ...
... – SQL statement is not known in advance, but instead is generated at run time – Program can generate SQL statements at runtime that are required to respond to ad hoc queries – Attribute list and condition are not known until end user specifies them – Tends to be much slower than static SQL – Require ...
purpose - HPE Community
... Applications will achieve the benefits of improved scalability on-64 bit machine only if they are memory intensive. 64-bit applications have bigger data structures because memory has to be addressed with a larger number of bits. Larger data structures translate into addtional memory requirements per ...
... Applications will achieve the benefits of improved scalability on-64 bit machine only if they are memory intensive. 64-bit applications have bigger data structures because memory has to be addressed with a larger number of bits. Larger data structures translate into addtional memory requirements per ...
CS 340 Lab Manual - CS 340 Database Management System
... Introduction to Oracle ............................................................................................................ 1 Oracle Utilities and Development Tools....................................................................... 1 SQL*Plus ............................................. ...
... Introduction to Oracle ............................................................................................................ 1 Oracle Utilities and Development Tools....................................................................... 1 SQL*Plus ............................................. ...
Computer System Security and Management D0004E
... • Aggregation: sensitivity level of an aggregate computed over a group of values may differ from the sensitivity levels of the individual elements; e.g., an aggregate may be sensitive information derived from a collection of less sensitive business data. • Inference problem: derivation of sensitive ...
... • Aggregation: sensitivity level of an aggregate computed over a group of values may differ from the sensitivity levels of the individual elements; e.g., an aggregate may be sensitive information derived from a collection of less sensitive business data. • Inference problem: derivation of sensitive ...
Creating a Partitioned Table
... Achieving Query Speed Eliminate partitions during query compile All disk resources should be used – Spread Data to use all drives – Parallelize by querying multiple partitions ...
... Achieving Query Speed Eliminate partitions during query compile All disk resources should be used – Spread Data to use all drives – Parallelize by querying multiple partitions ...
Microsoft SQL Server Administration
... • SQLServerAgent service must be running • Permissions on network or local resources ...
... • SQLServerAgent service must be running • Permissions on network or local resources ...
DB2_Ch08
... • The MINUS statement in SQL combines rows from two queries and returns only the rows that appear in the first set but not in the second ...
... • The MINUS statement in SQL combines rows from two queries and returns only the rows that appear in the first set but not in the second ...
Enterprise Manager
... Server Network utility: Configures network setting for SQL Server 2000. Start ->Programs -> Microsoft SQL Server -> Server Network utility. ...
... Server Network utility: Configures network setting for SQL Server 2000. Start ->Programs -> Microsoft SQL Server -> Server Network utility. ...
1188 Development of InterBase since year 2000
... isolation or (most often) in conjunction with the SQL ORDER BY clause. The WITH TIES clause must be used in conjunction with ORDER BY. The ROWS clause introduces three new InterBase SQL keywords: ROWS, TIES, and PERCENT. ...
... isolation or (most often) in conjunction with the SQL ORDER BY clause. The WITH TIES clause must be used in conjunction with ORDER BY. The ROWS clause introduces three new InterBase SQL keywords: ROWS, TIES, and PERCENT. ...
An Introduction to the Relational Model and to the Structured Query
... DDL ( Data Definition Language ) 1. create and destroy databases 2. create and destroy database objects (tables) 3. alter tables DML ( Data Manipulation Language ) ...
... DDL ( Data Definition Language ) 1. create and destroy databases 2. create and destroy database objects (tables) 3. alter tables DML ( Data Manipulation Language ) ...
Oracle Database settings Best Practice (1)
... This attribute only has any effect if the TimesTen server is configured to operate in multithreaded mode (MaxConnsPerServer > 1). The default for ServersPerDSN is 1. This means that the first MaxConnsPerServer client connections to a specific server DSN will be assigned to one server process, the ne ...
... This attribute only has any effect if the TimesTen server is configured to operate in multithreaded mode (MaxConnsPerServer > 1). The default for ServersPerDSN is 1. This means that the first MaxConnsPerServer client connections to a specific server DSN will be assigned to one server process, the ne ...
dept_name
... Authentication and authorization mechanisms to allow specific users access only to required data ...
... Authentication and authorization mechanisms to allow specific users access only to required data ...
here - Chinaemeze Chukuezi, MCITP: DBA
... • Maintained Database Health by creating custom automated management scripts to run index optimization and statistics updates on all production databases. • Improve work efficiency by creating scripts on scheduled Jobs that automate and simplify repetitive database tasks using Batch files, VBScript, ...
... • Maintained Database Health by creating custom automated management scripts to run index optimization and statistics updates on all production databases. • Improve work efficiency by creating scripts on scheduled Jobs that automate and simplify repetitive database tasks using Batch files, VBScript, ...
And all of a sudden: Main Memory Is Less Expensive Than Disk
... Disk-based databases are proven to be a good fit for traditional OLTP workloads, but their viability has to be re-evaluated for mixed workloads. The traditional approach of storing data on disk and caching the most recently used pages in memory is no longer viable as analytical queries often require ...
... Disk-based databases are proven to be a good fit for traditional OLTP workloads, but their viability has to be re-evaluated for mixed workloads. The traditional approach of storing data on disk and caching the most recently used pages in memory is no longer viable as analytical queries often require ...
Import Settings:
... 4. What is a simple database that uses two-dimensional tables consisting of rows and columns? a) flat type database b) hierarchical database c) relational database d) tabled database Answer: a Difficulty: Easy Section Reference: Understanding Flat Type Databases Explanation: A flat type database is ...
... 4. What is a simple database that uses two-dimensional tables consisting of rows and columns? a) flat type database b) hierarchical database c) relational database d) tabled database Answer: a Difficulty: Easy Section Reference: Understanding Flat Type Databases Explanation: A flat type database is ...
Week 11 (11/13/12): Lecture Notes
... Choice of optimizer goals – batch for best throughput, online for best response time Choice of access paths Choice of join orders ...
... Choice of optimizer goals – batch for best throughput, online for best response time Choice of access paths Choice of join orders ...
Database Availability Benchmark
... • Overall, DBMS is significantly more robust to disk faults than software RAID systems! ...
... • Overall, DBMS is significantly more robust to disk faults than software RAID systems! ...
Handy Annotations within Oracle 10g
... software that was originally developed in companies that Oracle acquired. Oracle’s acquisitions have ranged from small companies to large, publicly traded ones, including People soft, Siebel, Hyperion, and BEA. As a result of these acquisitions, Oracle has a very broad portfolio of enterprise softwa ...
... software that was originally developed in companies that Oracle acquired. Oracle’s acquisitions have ranged from small companies to large, publicly traded ones, including People soft, Siebel, Hyperion, and BEA. As a result of these acquisitions, Oracle has a very broad portfolio of enterprise softwa ...
Document
... database to another is hard. The SQL standard is large and complex, so most databases do not implement it fully. Some areas of the SQL standards such as semantics are ambiguous. It is possible to get stuck with a system. ...
... database to another is hard. The SQL standard is large and complex, so most databases do not implement it fully. Some areas of the SQL standards such as semantics are ambiguous. It is possible to get stuck with a system. ...
Tandem Computers
Tandem Computers, Inc. was the dominant manufacturer of fault-tolerant computer systems for ATM networks, banks, stock exchanges, telephone switching centers, and other similar commercial transaction processing applications requiring maximum uptime and zero data loss. The company was founded in 1974 and remained independent until 1997. It is now a server division within Hewlett Packard.Tandem's NonStop systems use a number of independent identical processors and redundant storage devices and controllers to provide automatic high-speed ""failover"" in the case of a hardware or software failure. To contain the scope of failures and of corrupted data, these multi-computer systems have no shared central components, not even main memory. Conventional multi-computer systems all use shared memories and work directly on shared data objects. Instead, NonStop processors cooperate by exchanging messages across a reliable fabric, and software takes periodic snapshots for possible rollback of program memory state.Besides handling failures well, this ""shared-nothing"" messaging system design also scales extremely well to the largest commercial workloads. Each doubling of the total number of processors would double system throughput, up to the maximum configuration of 4000 processors. In contrast, the performance of conventional multiprocessor systems is limited by the speed of some shared memory, bus, or switch. Adding more than 4–8 processors that way gives no further system speedup. NonStop systems have more often been bought to meet scaling requirements than for extreme fault tolerance. They compete well against IBM's largest mainframes, despite being built from simpler minicomputer technology.