lesson13 Backing Up and Restoring Databases
... When a transaction log becomes 100 percent full, users lose access to the database until an administrator clears the transaction log. Perform regular ( )منتظمlog backups to ensure continuous database availability. ...
... When a transaction log becomes 100 percent full, users lose access to the database until an administrator clears the transaction log. Perform regular ( )منتظمlog backups to ensure continuous database availability. ...
dbq - gaby.de
... Commands may be entered in free form. This means that line termination has no special meaning, and any number of spaces or tabs can be inserted at the start or end of a line or between elements. A command may be broken over more than one line, whereupon continuation prompts are issued to show that f ...
... Commands may be entered in free form. This means that line termination has no special meaning, and any number of spaces or tabs can be inserted at the start or end of a line or between elements. A command may be broken over more than one line, whereupon continuation prompts are issued to show that f ...
Document
... 9.1 What is a Transaction? • A transaction is any action that reads from and/or writes to a database may consist of – Simple SELECT statement to generate a list of table contents – A series of related UPDATE statements to change the values of attributes in various tables – A series of INSERT stateme ...
... 9.1 What is a Transaction? • A transaction is any action that reads from and/or writes to a database may consist of – Simple SELECT statement to generate a list of table contents – A series of related UPDATE statements to change the values of attributes in various tables – A series of INSERT stateme ...
Super database computers : hardware and software
... database-oriented and database-driven systems, the need for very large databases should ...
... database-oriented and database-driven systems, the need for very large databases should ...
Relation
... An Attribute or a Combination of Attributes (Say A) of Relation R1 Which Occurs as the Primary Key of another Relation R2 (Defined on the Same Domain) Allows Linkages Between Relations that are Tracked and Establish Dependencies Useful to Capture ER Relationships Elmasri and Navathe, Fundamentals of ...
... An Attribute or a Combination of Attributes (Say A) of Relation R1 Which Occurs as the Primary Key of another Relation R2 (Defined on the Same Domain) Allows Linkages Between Relations that are Tracked and Establish Dependencies Useful to Capture ER Relationships Elmasri and Navathe, Fundamentals of ...
DR - SQLSaturday
... What’s New in 2016 for Availability Groups? Standard Edition will come with AGs support with one db per group synchronous or asynchronous, not readable (HA/DR only) 3 sync replicas, up from 2 in SQL 2014 Listener will be able to do round-robin load balancing of read-only requests on multiple ...
... What’s New in 2016 for Availability Groups? Standard Edition will come with AGs support with one db per group synchronous or asynchronous, not readable (HA/DR only) 3 sync replicas, up from 2 in SQL 2014 Listener will be able to do round-robin load balancing of read-only requests on multiple ...
Database Configuration - L-Soft
... 2. Log into the Administration Hub. Select “Global Settings” “Maestro User Interface” “System Database Connection”. 3. Select the “The following external database is used as the System Database” radio button choice. 4. Select the database plugin that matches your database and JDBC-driver configu ...
... 2. Log into the Administration Hub. Select “Global Settings” “Maestro User Interface” “System Database Connection”. 3. Select the “The following external database is used as the System Database” radio button choice. 4. Select the database plugin that matches your database and JDBC-driver configu ...
Microsoft SQL Server 2000 Scalability Project - Basic Capacity
... more CPUs and memory to the server. Adding more CPUs can help scale the system to handle more users or additional workload. OLTP workloads are often very I/O intensive due to simple transactions requiring random disk-reads and disk-writes. These workloads benefit from increased memory because a larg ...
... more CPUs and memory to the server. Adding more CPUs can help scale the system to handle more users or additional workload. OLTP workloads are often very I/O intensive due to simple transactions requiring random disk-reads and disk-writes. These workloads benefit from increased memory because a larg ...
I accidently left the next generation Sports DB prototype on a bar stool!
... “We always try to improve our performance and get things to run faster. We tested a fully encrypted database and there was only a 4% decrease in performance versus an unencrypted database. We tested that with alternative data pools, we actually gained back almost 2% of that initial performance degra ...
... “We always try to improve our performance and get things to run faster. We tested a fully encrypted database and there was only a 4% decrease in performance versus an unencrypted database. We tested that with alternative data pools, we actually gained back almost 2% of that initial performance degra ...
Getting to Know the SQL Server Management Studio
... Server triggers are DDL (Data Definition Language) triggers. They execute in response to changes being made to the structure of the database. They are great for both auditing and regulating database operations. For example, if SQL Server determined that there were more than a specified number of rec ...
... Server triggers are DDL (Data Definition Language) triggers. They execute in response to changes being made to the structure of the database. They are great for both auditing and regulating database operations. For example, if SQL Server determined that there were more than a specified number of rec ...
Concurrency Control
... rating = 1, and finds oldest sailor (say, age = 71). Next, T2 inserts a new sailor; rating = 1, age = 96. T2 also deletes oldest sailor with rating = 2 (and, say, age = 80), and commits. T1 now locks all pages containing sailor records with rating = 2, and finds oldest (say, age = 63). ...
... rating = 1, and finds oldest sailor (say, age = 71). Next, T2 inserts a new sailor; rating = 1, age = 96. T2 also deletes oldest sailor with rating = 2 (and, say, age = 80), and commits. T1 now locks all pages containing sailor records with rating = 2, and finds oldest (say, age = 63). ...
Create and Access Databases
... 5. Reposition cursor in query window and press Edit and Clear Window. Then use the Stored Procedure sp_helpdb to display information about your databases by typing in query window: sp_helpdb 6. Press F5 to see results 7. Note down the detail information about your database TestDatabase: ...
... 5. Reposition cursor in query window and press Edit and Clear Window. Then use the Stored Procedure sp_helpdb to display information about your databases by typing in query window: sp_helpdb 6. Press F5 to see results 7. Note down the detail information about your database TestDatabase: ...
Making Database Security an IT Security Priority
... Applications need to give further consideration to security in order to protect the backend database. If a single account is used to connect to the backend database, the database may lose the capability to effectively track the individual user’s activity. Applications should use solutions such as V ...
... Applications need to give further consideration to security in order to protect the backend database. If a single account is used to connect to the backend database, the database may lose the capability to effectively track the individual user’s activity. Applications should use solutions such as V ...
Relational Algebra
... Query languages: Allow manipulation and retrieval of data from a database. Relational model supports simple, powerful QLs: ...
... Query languages: Allow manipulation and retrieval of data from a database. Relational model supports simple, powerful QLs: ...
MCITP Administrator: Microsoft SQL Server 2005 Database
... • If upgrading from SQL Server 7.0 the upgraded instance must be a default instance. • If only one instance is planned it should be a default instance • If supporting slinet connectiosn from SQL server 7.0 use a default instance • Any application installing SQL Servr Express Edition should do so as ...
... • If upgrading from SQL Server 7.0 the upgraded instance must be a default instance. • If only one instance is planned it should be a default instance • If supporting slinet connectiosn from SQL server 7.0 use a default instance • Any application installing SQL Servr Express Edition should do so as ...
Class Activity - Pearson Education
... Identify the components of a database and their uses. Define DBMS and RDBMS. Identify the differences between DBMS and RDBMS. Identify the features and functionality of RDBMS. Identify the data models used for organizing data. Identify the types of databases and their functionality. Analyze the E-R ...
... Identify the components of a database and their uses. Define DBMS and RDBMS. Identify the differences between DBMS and RDBMS. Identify the features and functionality of RDBMS. Identify the data models used for organizing data. Identify the types of databases and their functionality. Analyze the E-R ...
R - VUB STAR lab
... insert into borrower (select customer-name,account-number from depositor, inserted where inserted.account-number = depositor.account-number) insert into loan values (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account ...
... insert into borrower (select customer-name,account-number from depositor, inserted where inserted.account-number = depositor.account-number) insert into loan values (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account ...
Introduction to Databases Lecture 1 Chapters 1 - 2 Robb T. Koether
... The user does not need to have knowledge of how the data is stored. He works through a user-friendly interface. Different users can be given different views of the data. Each user may be unaware of the views that other users have. Data can be easily shared among users. ...
... The user does not need to have knowledge of how the data is stored. He works through a user-friendly interface. Different users can be given different views of the data. Each user may be unaware of the views that other users have. Data can be easily shared among users. ...
WinSales 5.0 Release Notes
... Top ten fields description name and column heading are hard coded because of issues with the internal search engine for WinSales and the Trigger Language needing these specific values to be unchanged by users to work properly. CalMonth Trigger Function: The conversion program will now convert all tr ...
... Top ten fields description name and column heading are hard coded because of issues with the internal search engine for WinSales and the Trigger Language needing these specific values to be unchanged by users to work properly. CalMonth Trigger Function: The conversion program will now convert all tr ...
Relational Algebra
... Selection ( σ ) Selects a subset of rows from relation. Projection (π ) Deletes unwanted columns from relation. Cross-product ( ) Allows us to combine two relations. Set-difference ( ) Tuples in reln. 1, but not in reln. 2. Union ( ) Tuples in reln. 1 and in reln. 2. ...
... Selection ( σ ) Selects a subset of rows from relation. Projection (π ) Deletes unwanted columns from relation. Cross-product ( ) Allows us to combine two relations. Set-difference ( ) Tuples in reln. 1, but not in reln. 2. Union ( ) Tuples in reln. 1 and in reln. 2. ...
The following paper was originally published in the
... Database systems are often at the core of enterprise computing infrastructures, and hence are almost always highly visible. A System Administrator (SA) unfamiliar with these complexities may find himself relying upon the insight of a database administrator (DBA) who may or may not understand a syste ...
... Database systems are often at the core of enterprise computing infrastructures, and hence are almost always highly visible. A System Administrator (SA) unfamiliar with these complexities may find himself relying upon the insight of a database administrator (DBA) who may or may not understand a syste ...