SQL Server 2000 Editions
... • The first step in using multiple disks to optimize your SQL Server 2000 production environment is to use separate disks for your transaction log files and your data files. This separation will ensure recoverability in case of a disk failure. • Use dedicated disks for all SQL Server 2000 files wher ...
... • The first step in using multiple disks to optimize your SQL Server 2000 production environment is to use separate disks for your transaction log files and your data files. This separation will ensure recoverability in case of a disk failure. • Use dedicated disks for all SQL Server 2000 files wher ...
CODESOFT Tutorial
... ODBC (Open DataBase Connectivity) or OLE DB connections. Databases allow you to store data. All data is organized into two-dimensional tables in what is called a relationship. Each row in a table is called a record. The purpose of a record is to manage an object, the properties of which are organize ...
... ODBC (Open DataBase Connectivity) or OLE DB connections. Databases allow you to store data. All data is organized into two-dimensional tables in what is called a relationship. Each row in a table is called a record. The purpose of a record is to manage an object, the properties of which are organize ...
ODBC DSN-less Connections
... username, password, and an optional cursor type. In cases where a username and password, and cursor type are not required, the parameters can be replaced with a null string - ''. The connection id returned by this functions is needed by other ODBC functions. You can have multiple connections open at ...
... username, password, and an optional cursor type. In cases where a username and password, and cursor type are not required, the parameters can be replaced with a null string - ''. The connection id returned by this functions is needed by other ODBC functions. You can have multiple connections open at ...
11 Scalability Concepts Every Architect Should Understand
... – Decoupled front/back ends insulate from other system issues if… – Twitter down – Email server unreachable – Order processing partner doing maintenance – Internet connectivity interruption ...
... – Decoupled front/back ends insulate from other system issues if… – Twitter down – Email server unreachable – Order processing partner doing maintenance – Internet connectivity interruption ...
Joins and subqueries
... A subquery can be defined as a SELECT query that returns a single value Subqueries are nested within a SELECT, INSERT, UPDATE, or DELETE statement Subqueries can be used to retrieve data from multiple tables and can be used as an alternative to a join Subqueries can also be used inside the WHERE ...
... A subquery can be defined as a SELECT query that returns a single value Subqueries are nested within a SELECT, INSERT, UPDATE, or DELETE statement Subqueries can be used to retrieve data from multiple tables and can be used as an alternative to a join Subqueries can also be used inside the WHERE ...
CS 579 Database Systems
... at multiple sites must either be committed at all sites or aborted at all sites • Not acceptable for one sub-transaction to commit and one abort. • If the coordinator just sends a COMMIT message to two subordinates S1 and S2 – S1 could get the COMMIT message and commit – S2 could crash just before i ...
... at multiple sites must either be committed at all sites or aborted at all sites • Not acceptable for one sub-transaction to commit and one abort. • If the coordinator just sends a COMMIT message to two subordinates S1 and S2 – S1 could get the COMMIT message and commit – S2 could crash just before i ...
Query-based Data Warehousing Tool
... the attribute value ar itself or based on any other attribute value of the same row. Sometimes, the filters include a joining between attributes of the same source. The use of foreign-key is useful to materialize these filters. In addition, ci is a condition on the mapped value of the attribute A. T ...
... the attribute value ar itself or based on any other attribute value of the same row. Sometimes, the filters include a joining between attributes of the same source. The use of foreign-key is useful to materialize these filters. In addition, ci is a condition on the mapped value of the attribute A. T ...
Multiple Choice Tutorial
... Relational database systems have became increasingly popular single the late 1970's. They offer a powerful method for storing data in an application-independent manner. This means for many enterprises the database is at the core of the I.T. strategy. Developments can progress around a relatively sta ...
... Relational database systems have became increasingly popular single the late 1970's. They offer a powerful method for storing data in an application-independent manner. This means for many enterprises the database is at the core of the I.T. strategy. Developments can progress around a relatively sta ...
Special Interest Activity - School of Information Technology
... but not compatable except version 2.14. Graphviz version 2.14 is available for download in http://infolab.stanford.edu/trio/code/graphviz-2.14.1.exe . The windows authentication supperuser needs to be created first in the PostgreSQL in order to connect to database. After established the connection, ...
... but not compatable except version 2.14. Graphviz version 2.14 is available for download in http://infolab.stanford.edu/trio/code/graphviz-2.14.1.exe . The windows authentication supperuser needs to be created first in the PostgreSQL in order to connect to database. After established the connection, ...
Database Programming Languages (DBPL-5)
... read-only and may be supplied as arguments to retrieval operations. In addition, since locked versions can be traversed lazily, this versioning method also accommodates extent retrieval to lazy computation. The approach proposed here differs from that proposed in FDBPL [12]. 2 In FDBPL, database sta ...
... read-only and may be supplied as arguments to retrieval operations. In addition, since locked versions can be traversed lazily, this versioning method also accommodates extent retrieval to lazy computation. The approach proposed here differs from that proposed in FDBPL [12]. 2 In FDBPL, database sta ...
Partition Types - Informatica Marketplace
... Service queries the database system for table partition information and fetches data into the session partitions. When you use target database partitioning, the Integration Service loads data into corresponding database partition nodes. Use database partitioning for Oracle and IBM DB2 sources and IB ...
... Service queries the database system for table partition information and fetches data into the session partitions. When you use target database partitioning, the Integration Service loads data into corresponding database partition nodes. Use database partitioning for Oracle and IBM DB2 sources and IB ...
Powerpoint slides for module 6
... You can replicate between a SQL Server with a service pack installed and a SQL Server without that service ...
... You can replicate between a SQL Server with a service pack installed and a SQL Server without that service ...
BQ36404412
... Subscriber in this picture is called the „owner‟ while account table is called the „member‟ [19]. Each subscriber may have one or more than one records in the account table (one-to-many relationship 1.2Application Information It is fundamental to know about the predicates used in user‟s queries. For ...
... Subscriber in this picture is called the „owner‟ while account table is called the „member‟ [19]. Each subscriber may have one or more than one records in the account table (one-to-many relationship 1.2Application Information It is fundamental to know about the predicates used in user‟s queries. For ...
Information paper database recovery
... A core function of any database engine is to ensure, in case of an abnormal shutdown of the system (meaning that the system may not have had time to properly close all its files), that the database integrity and consistency are preserved. This core function also ensures that no database updates are ...
... A core function of any database engine is to ensure, in case of an abnormal shutdown of the system (meaning that the system may not have had time to properly close all its files), that the database integrity and consistency are preserved. This core function also ensures that no database updates are ...
Introduction to Database System
... If there are two or more keys, one of the candidates is chosen to be the primary key. The primary key attributes of a tuple may not be NULL. A set of fields that contains a subset of fields fulfilling the key constraint is called a superkey E.g. sid is a key for Students. (What about name?). T ...
... If there are two or more keys, one of the candidates is chosen to be the primary key. The primary key attributes of a tuple may not be NULL. A set of fields that contains a subset of fields fulfilling the key constraint is called a superkey E.g. sid is a key for Students. (What about name?). T ...
Distributed Databases - University of Texas at El Paso
... • The entire database is first ‘perturbed’ • All statistical relations are maintained in the perturbed dataset • User allowed to make all queries on the perturbed data set (individual data entities show no relationship to the real data) ...
... • The entire database is first ‘perturbed’ • All statistical relations are maintained in the perturbed dataset • User allowed to make all queries on the perturbed data set (individual data entities show no relationship to the real data) ...
Slide 1
... Distributed Concurrency Control • Multisite, multiple-process operations are much more likely to create data inconsistencies and deadlocked transactions than are single-site systems ...
... Distributed Concurrency Control • Multisite, multiple-process operations are much more likely to create data inconsistencies and deadlocked transactions than are single-site systems ...
CSIT- 530 www.cs.ust.hk/~dimitris/CSIT530/530.html
... For each entity set and relationship set there is a unique table which is assigned the name of the corresponding entity set or relationship set. Each table has a number of columns (generally corresponding to attributes), which have unique names. Converting an E-R diagram to a table format is the bas ...
... For each entity set and relationship set there is a unique table which is assigned the name of the corresponding entity set or relationship set. Each table has a number of columns (generally corresponding to attributes), which have unique names. Converting an E-R diagram to a table format is the bas ...
Converting to Transparent Data Encryption with Oracle Data Guard
... manually each time the database is started. The wallet will be created on one primary instance and must be manually copied to all other Oracle RAC nodes of a primary and standby database. If the database is already using an encryption wallet or keystore, the same may be reused but Oracle recommends ...
... manually each time the database is started. The wallet will be created on one primary instance and must be manually copied to all other Oracle RAC nodes of a primary and standby database. If the database is already using an encryption wallet or keystore, the same may be reused but Oracle recommends ...
Presentation Guidelines
... • A. Go Crazy with all these releases in-house • OR B. Use the DB schema numbering methodology developed earlier to keep it under control. ...
... • A. Go Crazy with all these releases in-house • OR B. Use the DB schema numbering methodology developed earlier to keep it under control. ...
2 Typological Database System
... discussed in terms of ‘predicate initial’, ‘predicate medial’ or ‘predicate final’. (For explanation of the terms ‘BWO’ and ‘predicate’ see [15] and [8] respectively.) These differences in terminology highlight two issues for the conceptualization of the domain. The first issue concerns the intended ...
... discussed in terms of ‘predicate initial’, ‘predicate medial’ or ‘predicate final’. (For explanation of the terms ‘BWO’ and ‘predicate’ see [15] and [8] respectively.) These differences in terminology highlight two issues for the conceptualization of the domain. The first issue concerns the intended ...
MTA Database - Certification Camps
... This module introduces T-SQL expressions which return a valid relational table, typically for further use in the query. The module discusses views, derived tables, common table expressions and inline table-valued functions. Lessons Using Views Using Inline Table-Valued Functions Using Derived ...
... This module introduces T-SQL expressions which return a valid relational table, typically for further use in the query. The module discusses views, derived tables, common table expressions and inline table-valued functions. Lessons Using Views Using Inline Table-Valued Functions Using Derived ...
Scaling the Data Tier with Citrix NetScaler SQL Intelligent Load
... into relatively few SQL connections to the server. With SQL transaction awareness NetScaler can switch SQL requests from the client’s single SQL connection to many different backend servers. The “Virtual IP” interface will be the manner in which external processes, applications and users will access ...
... into relatively few SQL connections to the server. With SQL transaction awareness NetScaler can switch SQL requests from the client’s single SQL connection to many different backend servers. The “Virtual IP” interface will be the manner in which external processes, applications and users will access ...
Achievements and Weaknesses of Object
... The OODB model has an OID that it is automatically generated by the system and that guarantees uniqueness to each object. This, in addition to eliminating the need for user defined keys in the OODB model, has brought other advantages to OODBs: 1) the OID cannot be modified by the application; 2) as ...
... The OODB model has an OID that it is automatically generated by the system and that guarantees uniqueness to each object. This, in addition to eliminating the need for user defined keys in the OODB model, has brought other advantages to OODBs: 1) the OID cannot be modified by the application; 2) as ...