“Oracle Database 11g: SQL Tuning Workshop”
... You'll also learn to interpret execution plans, as well as the different ways data can be accessed. Explore how the optimizer chooses the path and how to influence the optimizer to ensure that the best method is used. Automatic SQL Tuning Tools This course also covers Automatic SQL Tuning tools, as ...
... You'll also learn to interpret execution plans, as well as the different ways data can be accessed. Explore how the optimizer chooses the path and how to influence the optimizer to ensure that the best method is used. Automatic SQL Tuning Tools This course also covers Automatic SQL Tuning tools, as ...
jhtp5_23
... The JDBC-to-ODBC bridge driver connects Java programs to Microsoft ODBC (Open Database Connectivity) data sources. The Java 2 Software Development Kit from Sun Microsystems, Inc. includes the JDBC-to-ODBC bridge driver (sun.jdbc.odbc.JdbcOdbcDriver). This driver typically requires the ODBC driver to ...
... The JDBC-to-ODBC bridge driver connects Java programs to Microsoft ODBC (Open Database Connectivity) data sources. The Java 2 Software Development Kit from Sun Microsystems, Inc. includes the JDBC-to-ODBC bridge driver (sun.jdbc.odbc.JdbcOdbcDriver). This driver typically requires the ODBC driver to ...
jhtp5_23 - IC
... The JDBC-to-ODBC bridge driver connects Java programs to Microsoft ODBC (Open Database Connectivity) data sources. The Java 2 Software Development Kit from Sun Microsystems, Inc. includes the JDBC-to-ODBC bridge driver (sun.jdbc.odbc.JdbcOdbcDriver). This driver typically requires the ODBC driver to ...
... The JDBC-to-ODBC bridge driver connects Java programs to Microsoft ODBC (Open Database Connectivity) data sources. The Java 2 Software Development Kit from Sun Microsystems, Inc. includes the JDBC-to-ODBC bridge driver (sun.jdbc.odbc.JdbcOdbcDriver). This driver typically requires the ODBC driver to ...
Physical Database Design
... Is the value of a contract less than the budget of the department? To speed up this query, we might add a field budget B to Contracts. This introduces the FD DB wrt Contracts. Thus, Contracts is no longer in 3NF. We might choose to modify Contracts thus if the query is sufficiently important, ...
... Is the value of a contract less than the budget of the department? To speed up this query, we might add a field budget B to Contracts. This introduces the FD DB wrt Contracts. Thus, Contracts is no longer in 3NF. We might choose to modify Contracts thus if the query is sufficiently important, ...
Abstract - Logic Systems
... Modern scientific databases and web databases maintain large and heterogeneous data. These real-world databases contain hundreds or even thousands of relations and attributes. Traditional predefined query forms are not able to satisfy various ad-hoc queries from users on those databases. This paper ...
... Modern scientific databases and web databases maintain large and heterogeneous data. These real-world databases contain hundreds or even thousands of relations and attributes. Traditional predefined query forms are not able to satisfy various ad-hoc queries from users on those databases. This paper ...
Linked data performance in different databases
... DBMS. Depending on the movies a user has rated and the rating score, the user should get recommendations for other similar movies. The recommendation themselves are powered through a recommendation engine, running a recommendation algorithm to determine which media to recommend, this algorithm and e ...
... DBMS. Depending on the movies a user has rated and the rating score, the user should get recommendations for other similar movies. The recommendation themselves are powered through a recommendation engine, running a recommendation algorithm to determine which media to recommend, this algorithm and e ...
Structured Database Running on Appaserver
... Historically, the attributes assigned as the primary key must be immutable – they could not change. However, Appaserver overcomes this restriction. Therefore, you can change the person's name if she gets married or change the street address if he moves. ...
... Historically, the attributes assigned as the primary key must be immutable – they could not change. However, Appaserver overcomes this restriction. Therefore, you can change the person's name if she gets married or change the street address if he moves. ...
1 AND 1=1
... For true response – time delay is executed For failed response – time delay is not executed Read data byte by byte – exactly the same method with blind injection First example by Chris Anley's paper – More advanced SQL Injection Another example is in David Litchfield paper – Data Mining wi ...
... For true response – time delay is executed For failed response – time delay is not executed Read data byte by byte – exactly the same method with blind injection First example by Chris Anley's paper – More advanced SQL Injection Another example is in David Litchfield paper – Data Mining wi ...
No Slide Title - Department of Computer Science
... Restricting unauthorized access Enforcing integrity constraints Providing backup and recovery Persistent storage for program objects ...
... Restricting unauthorized access Enforcing integrity constraints Providing backup and recovery Persistent storage for program objects ...
notes - Course Website Directory
... have two tuples where the attribute A has a NULL value. 2. Insertion in SQL supports the bag semantics. 3. There is no way to define a primary key containing multiple attributes in SQL. 4. If we execute an UPDATE-SET-WHERE statement, every time the DBMS finds a tuple satisfying the WHERE conditions, ...
... have two tuples where the attribute A has a NULL value. 2. Insertion in SQL supports the bag semantics. 3. There is no way to define a primary key containing multiple attributes in SQL. 4. If we execute an UPDATE-SET-WHERE statement, every time the DBMS finds a tuple satisfying the WHERE conditions, ...
Discovering Robust Knowledge from Databases that Change
... schemas, our approach can still come up with some estimates. This feature is important because not every real-world database system keeps transactions log files. Deriving transactions that invalidate an arbitrary logic statement is not a trivial problem. Fortunately, most knowledge discovery syste ...
... schemas, our approach can still come up with some estimates. This feature is important because not every real-world database system keeps transactions log files. Deriving transactions that invalidate an arbitrary logic statement is not a trivial problem. Fortunately, most knowledge discovery syste ...
Fixed Server Roles
... restriction. As a result, membership in this role should be carefully controlled. In typical production environments you would only see DBAs being a member of this role. In very strict environments, you'll even see it restricted so that only particular DBAs within an organization have this level of ...
... restriction. As a result, membership in this role should be carefully controlled. In typical production environments you would only see DBAs being a member of this role. In very strict environments, you'll even see it restricted so that only particular DBAs within an organization have this level of ...
Oracle 12c Database Administrator
... Overview Oracle Database 12, Concepts and Terminologies • Overview of Oracle Database 12c and Related Products • Overview of relational database management concepts and terminologies • Introduction to SQL and its development environments • What is Oracle SQL Developer? • Starting SQL*Plus from Oracl ...
... Overview Oracle Database 12, Concepts and Terminologies • Overview of Oracle Database 12c and Related Products • Overview of relational database management concepts and terminologies • Introduction to SQL and its development environments • What is Oracle SQL Developer? • Starting SQL*Plus from Oracl ...
DBAdminFund_PPT_5.2
... The first type copies all items of the database, including open items, such as files that are open at the time of the backup. The second type copies all items of the database and all items on the server. It copies server files that the database is on in addition to the database itself, such as u ...
... The first type copies all items of the database, including open items, such as files that are open at the time of the backup. The second type copies all items of the database and all items on the server. It copies server files that the database is on in addition to the database itself, such as u ...
Chapter 15: Concurrency Control
... SI breaks serializability when txns modify different items, each based on a previous state of the item the other modified l ...
... SI breaks serializability when txns modify different items, each based on a previous state of the item the other modified l ...
transactions_and_recovery
... All-or-nothing, no partial results. An event either happens and is committed or fails and is rolled back. e.g. in a money transfer, debit one account, credit the other. Either both debiting and crediting operations succeed, or neither of them do. Transaction failure is called Abort Commit and ab ...
... All-or-nothing, no partial results. An event either happens and is committed or fails and is rolled back. e.g. in a money transfer, debit one account, credit the other. Either both debiting and crediting operations succeed, or neither of them do. Transaction failure is called Abort Commit and ab ...
Physics Database Service Status
... Security has many layers: – Oracle’s security checklist – Scan for weak or default passwords – Check for published info on the web also by other sites • ‘Social engineering’ is a threat for complex environments ...
... Security has many layers: – Oracle’s security checklist – Scan for weak or default passwords – Check for published info on the web also by other sites • ‘Social engineering’ is a threat for complex environments ...
Logical structure of a transaction
... – The endorser/committer architecture cannot prevent phantom reads, therefore this solution can only be used by applications not sensitive to phantom reads • A phantom read occurs when the result set at simulation time does not match the result set at commit time, due to in-flight transactions • Exa ...
... – The endorser/committer architecture cannot prevent phantom reads, therefore this solution can only be used by applications not sensitive to phantom reads • A phantom read occurs when the result set at simulation time does not match the result set at commit time, due to in-flight transactions • Exa ...
The realities of polyglot persistence in mainstream enterprises
... They won’t say, “Oh, I’m going to standardize my enterprise data warehouse on NoSQL or Hadoop.” That’s not going to happen. That’s why I say that NoSQL is likely better for operational applications. For example, companies who have brick-and-mortar stores and an online ecommerce presence want their o ...
... They won’t say, “Oh, I’m going to standardize my enterprise data warehouse on NoSQL or Hadoop.” That’s not going to happen. That’s why I say that NoSQL is likely better for operational applications. For example, companies who have brick-and-mortar stores and an online ecommerce presence want their o ...
Accessing Databases with JDBC
... contain. Excess rows are silently dropped. The default is zero for no limit. ...
... contain. Excess rows are silently dropped. The default is zero for no limit. ...
original - Kansas State University
... may be all to revoke all privileges the revokee
may hold.
If includes public, all users lose the privilege
except those granted it explicitly.
If the same privilege was granted twice to the same user by
different grantors, the user may retain the privilege after ...
...
SQL virtual database Release Notes
... Each virtual database is hosted by the SQL Server instance you specify. All objects and data in the virtual databases are accessible to SQL Server jobs and stored procedures, T-SQL scripts, and other third-party applications. The SQLvdb Engine, which consists of a driver and a service, manages the v ...
... Each virtual database is hosted by the SQL Server instance you specify. All objects and data in the virtual databases are accessible to SQL Server jobs and stored procedures, T-SQL scripts, and other third-party applications. The SQLvdb Engine, which consists of a driver and a service, manages the v ...
Relation
... Update Operations on Relations (cont.) Updating an attribute that is neither a primary key nor a foreign key usually causes no problems Modifying a primary key value is similar to deleting one tuple and inserting another in its place If a foreign key attribute is modified, the DBMS must make ...
... Update Operations on Relations (cont.) Updating an attribute that is neither a primary key nor a foreign key usually causes no problems Modifying a primary key value is similar to deleting one tuple and inserting another in its place If a foreign key attribute is modified, the DBMS must make ...
COMMIT - Telkom University
... Lost updates occur when two or more transactions selects the same row and then update the row based on the value originally selected. Each transactions is unaware of other transactions. The last update overwrites updates made by the other transactions, which results in lost data. A's update of 300 v ...
... Lost updates occur when two or more transactions selects the same row and then update the row based on the value originally selected. Each transactions is unaware of other transactions. The last update overwrites updates made by the other transactions, which results in lost data. A's update of 300 v ...