transaction - Pearson Education
... Two-phased Locking • Two-phased locking Transactions are allowed to obtain locks as necessary (growing phase). Once the first lock is released (shrinking phase), no other lock can be obtained. • A special case of two-phased locking. Locks are obtained throughout the transaction. No lock is ...
... Two-phased Locking • Two-phased locking Transactions are allowed to obtain locks as necessary (growing phase). Once the first lock is released (shrinking phase), no other lock can be obtained. • A special case of two-phased locking. Locks are obtained throughout the transaction. No lock is ...
PDF
... CA-IDMS refers to the complete line of systems software products in the IDMS product family. This document covers Release 12.0 features for these CA-IDMS products: ■ CA-IDMS/DB ■ CA-IDMS/DC ■ CA-IDMS/UCF ■ CA-IDMS Performance Monitor ■ CA-ADS and the Mapping Facility ■ CA-Culprit ■ CA-OLQ ■ CA-IC ...
... CA-IDMS refers to the complete line of systems software products in the IDMS product family. This document covers Release 12.0 features for these CA-IDMS products: ■ CA-IDMS/DB ■ CA-IDMS/DC ■ CA-IDMS/UCF ■ CA-IDMS Performance Monitor ■ CA-ADS and the Mapping Facility ■ CA-Culprit ■ CA-OLQ ■ CA-IC ...
Fall seven times, stand up eight. PL/SQL 1. What is PL/SQL ? PL
... 5. What is a view ? A view may also be defined as custom-tailored (data presented to meet requirement) presentation of data from more than one table A view is stored inside the database as a select query. It does not have any data of its own but it only fetches data from base tables by executing the ...
... 5. What is a view ? A view may also be defined as custom-tailored (data presented to meet requirement) presentation of data from more than one table A view is stored inside the database as a select query. It does not have any data of its own but it only fetches data from base tables by executing the ...
2.0 The Background of Database Systems
... numbers and colors of all cars driving on the roads of Lebanon can be considered as another collection. The software needed to control and maintain these collections of data is called a Database Management System (DBMS). Software Applications are special purpose programs that manipulate the data sto ...
... numbers and colors of all cars driving on the roads of Lebanon can be considered as another collection. The software needed to control and maintain these collections of data is called a Database Management System (DBMS). Software Applications are special purpose programs that manipulate the data sto ...
SQL DOM: Compile Time Checking of Dynamic SQL Statements
... between the two goals, we always chose the first goal. One example of the struggle between these two goals occurred during the design of the class that would be used to construct insert SQL statements. For an insert SQL statement to be valid it has to contain a value for every column in the table th ...
... between the two goals, we always chose the first goal. One example of the struggle between these two goals occurred during the design of the class that would be used to construct insert SQL statements. For an insert SQL statement to be valid it has to contain a value for every column in the table th ...
sql - structured query language
... undergraduate students of CMS. Special thanks to the original authors for allowing me to use their work as the basis for this document. The target audience for this version is students on postgraduate courses at CMS, but who have not had SQL experience, or are very rusty. It is a cut down version of ...
... undergraduate students of CMS. Special thanks to the original authors for allowing me to use their work as the basis for this document. The target audience for this version is students on postgraduate courses at CMS, but who have not had SQL experience, or are very rusty. It is a cut down version of ...
Greenplum Database Security Configuration Guide, A01
... access and authentication to your Greenplum system. The segments also have pg_hba.conf files, but these are already correctly configured to only allow client connections from the master host. The segments never accept outside client connections, so there is no need to alter the pg_hba.conf file on y ...
... access and authentication to your Greenplum system. The segments also have pg_hba.conf files, but these are already correctly configured to only allow client connections from the master host. The segments never accept outside client connections, so there is no need to alter the pg_hba.conf file on y ...
Automated Ranking of Database Query Results
... While IDF Similarity can be very useful in many applications of database ranking, it nevertheless has several shortcomings that need to be addressed. In this section we first discuss these shortcomings, and then discuss QF Similarity, a ranking function that leverages workload information to overcom ...
... While IDF Similarity can be very useful in many applications of database ranking, it nevertheless has several shortcomings that need to be addressed. In this section we first discuss these shortcomings, and then discuss QF Similarity, a ranking function that leverages workload information to overcom ...
Consistent Query Answers in Inconsistent Databases
... with the integrity comtraints and which are not. In this paper, we provide a logical characterization of consistent query answers in relational databases that may be inconsistent with the given integrity constraints. Intuitively, an answer to a query posed to a database that violates the integrity c ...
... with the integrity comtraints and which are not. In this paper, we provide a logical characterization of consistent query answers in relational databases that may be inconsistent with the given integrity constraints. Intuitively, an answer to a query posed to a database that violates the integrity c ...
6. RECOMPILE INVALID OBJECTS
... The list of invalid SYS/SYSTEM objects was written to registry$sys_inv_objs. The list of non-SYS/SYSTEM objects was written to registry$nonsys_inv_objs unless there were over 5000. Use utluiobj.sql after the upgrade to identify any new invalid objects due to the upgrade. ...
... The list of invalid SYS/SYSTEM objects was written to registry$sys_inv_objs. The list of non-SYS/SYSTEM objects was written to registry$nonsys_inv_objs unless there were over 5000. Use utluiobj.sql after the upgrade to identify any new invalid objects due to the upgrade. ...
DBTaint: Cross-Application Information Flow Tracking via Databases
... these system-wide mechanisms fail to take advantage of application semantics. Without the high-level semantics, these systems cannot properly perform taint propagation throughout complex database operations. We introduce DBTaint, a system that provides information flow tracking across databases for ...
... these system-wide mechanisms fail to take advantage of application semantics. Without the high-level semantics, these systems cannot properly perform taint propagation throughout complex database operations. We introduce DBTaint, a system that provides information flow tracking across databases for ...
A Practical Theory of Language-Integrated Query
... difficult to use as one language. The host and query languages often use different notations for the same thing, and convenient abstractions such as higher-order functions and nesting may not be available in the query language. Interfacing between the two adds to the mental burden on the programmer ...
... difficult to use as one language. The host and query languages often use different notations for the same thing, and convenient abstractions such as higher-order functions and nesting may not be available in the query language. Interfacing between the two adds to the mental burden on the programmer ...
Database Backup and Restore
... We strongly recommend that you back up your Amicus database daily. Backups will enable you to restore your database in the event of computer failure of other emergency. Systematically, store some backups on CD or other removable media, separately from hard drives (which could fail), and store some o ...
... We strongly recommend that you back up your Amicus database daily. Backups will enable you to restore your database in the event of computer failure of other emergency. Systematically, store some backups on CD or other removable media, separately from hard drives (which could fail), and store some o ...
Best Practices for Upgrading to SQL Server® 2005
... If, for whatever reason, the server needs to be built online, obviously you need to give the new server a new name; otherwise, there will be a network conflict. However, when it is time to install the SQL Server 2005 instance, you can give the instance the same name as the current production instanc ...
... If, for whatever reason, the server needs to be built online, obviously you need to give the new server a new name; otherwise, there will be a network conflict. However, when it is time to install the SQL Server 2005 instance, you can give the instance the same name as the current production instanc ...
- Courses - University of California, Berkeley
... • Users are responsible for updating the database, DA and DBA are responsible for developing procedures that ensure the integrity and security of the database during the update process. • Specific responsibility for data collection, editing and verification must be assigned • Quality assurance must ...
... • Users are responsible for updating the database, DA and DBA are responsible for developing procedures that ensure the integrity and security of the database during the update process. • Specific responsibility for data collection, editing and verification must be assigned • Quality assurance must ...
Case Sensitivity in SQL Server Geodatabases
... when they are compared. For example, lowercase a is considered the same as uppercase A in a case-insensitive comparison. SQL Server has two types of collations: Windows collations, which are designed to match Windows locales, and SQL collations, which match combinations of code page and sort order f ...
... when they are compared. For example, lowercase a is considered the same as uppercase A in a case-insensitive comparison. SQL Server has two types of collations: Windows collations, which are designed to match Windows locales, and SQL collations, which match combinations of code page and sort order f ...
Avoiding SQL Performance Regressions - Oracle DBA
... Collected 13.7K queries for 3 days Those were all queries for that represented workload to be tested Test environment used the same types of machines as production system. Both used two nodes RAC and test DB were created through Disk Copy Each trial used 10min timeout and 10 executions and was com ...
... Collected 13.7K queries for 3 days Those were all queries for that represented workload to be tested Test environment used the same types of machines as production system. Both used two nodes RAC and test DB were created through Disk Copy Each trial used 10min timeout and 10 executions and was com ...
title
... – Keyword: P1 Performance (of the Primary Db) over data protect. It requires ASYNC redo transport, the LGWR process never waits for acknowledgment from the Standby database. ▶ Maximum Availability – Keyword: P1 = Availability: Zero data loss protect as a very close P2. It requires SYNC redo transpor ...
... – Keyword: P1 Performance (of the Primary Db) over data protect. It requires ASYNC redo transport, the LGWR process never waits for acknowledgment from the Standby database. ▶ Maximum Availability – Keyword: P1 = Availability: Zero data loss protect as a very close P2. It requires SYNC redo transpor ...
SQL Expert Installation Guide
... Access Module, OmniSQL Toolkit, Open Biz, Open Client, Open ClientConnect, Open Client/Server, Open Client/Server Interfaces, Open Gateway, Open Server, Open ServerConnect, Open Solutions, Optima++, PB-Gen, PC APT Execute, PC DB-Net, PC Net Library, ...
... Access Module, OmniSQL Toolkit, Open Biz, Open Client, Open ClientConnect, Open Client/Server, Open Client/Server Interfaces, Open Gateway, Open Server, Open ServerConnect, Open Solutions, Optima++, PB-Gen, PC APT Execute, PC DB-Net, PC Net Library, ...
MAA / Data Guard 12c Setup Guide Creating a RAC Physical
... duplicate internally it performs bounce of standby database and whenever instance is closed there will be no more services registered with the listener and hence by setting, we can escape from “ORA-12514: TNS:listener does not currently know of service requested in connect descriptor” and Oracle can ...
... duplicate internally it performs bounce of standby database and whenever instance is closed there will be no more services registered with the listener and hence by setting, we can escape from “ORA-12514: TNS:listener does not currently know of service requested in connect descriptor” and Oracle can ...
IMS 3005 Course Introduction - University of Central Florida
... – You take results (including errors!) and display them to the user through your interface • SQL can contain complex procedural code in addition to data manipulation statements ...
... – You take results (including errors!) and display them to the user through your interface • SQL can contain complex procedural code in addition to data manipulation statements ...
SQL and SAS/ACCESS Differences and Interrelationships
... data view. The definition of a SAS data view is simply that views do not contain data. More precisely, a data view contains information that describes, or points to data contained elsewhere. This definition Is true for view descriptors and PROC SOL views and will continue to be true as new view type ...
... data view. The definition of a SAS data view is simply that views do not contain data. More precisely, a data view contains information that describes, or points to data contained elsewhere. This definition Is true for view descriptors and PROC SOL views and will continue to be true as new view type ...
Setting up Veritas Cluster Server (VCS)
... As shown in Figure 1, a typical cluster has two nodes. VCS requires that a “service group” be defined for each database and associated applications. Each service group contains everything that is relevant to that particular database and application. Then, when failover occurs, everything in that Ser ...
... As shown in Figure 1, a typical cluster has two nodes. VCS requires that a “service group” be defined for each database and associated applications. Each service group contains everything that is relevant to that particular database and application. Then, when failover occurs, everything in that Ser ...
Microsoft Access
Microsoft Access is a DBMS (also known as Database Management System) from Microsoft that combines the relational Microsoft Jet Database Engine with a graphical user interface and software-development tools. It is a member of the Microsoft Office suite of applications, included in the Professional and higher editions or sold separately.Microsoft Access stores data in its own format based on the Access Jet Database Engine. It can also import or link directly to data stored in other applications and databases.Software developers and data architects can use Microsoft Access to develop application software, and ""power users"" can use it to build software applications. Like other Office applications, Access is supported by Visual Basic for Applications (VBA), an object-oriented programming language that can reference a variety of objects including DAO (Data Access Objects), ActiveX Data Objects, and many other ActiveX components. Visual objects used in forms and reports expose their methods and properties in the VBA programming environment, and VBA code modules may declare and call Windows operating-system functions.