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... Five Factors of DB Performance • Workload – OLTP, OLAP, ad-hoc queries, system commands • Can fluctuate drastically ...
... Five Factors of DB Performance • Workload – OLTP, OLAP, ad-hoc queries, system commands • Can fluctuate drastically ...
Programmatic SQL
... control commands such as IF, THEN, ELSE, GOTO, DO, or DO…WHILE. • To overcome this and to provide more flexibility, SQL allows statements to be “embedded” in a high-level procedural language. ...
... control commands such as IF, THEN, ELSE, GOTO, DO, or DO…WHILE. • To overcome this and to provide more flexibility, SQL allows statements to be “embedded” in a high-level procedural language. ...
SQL: Queries, Programming, Triggers
... CMPT 354, Simon Fraser University, Fall 2008, Martin Ester ...
... CMPT 354, Simon Fraser University, Fall 2008, Martin Ester ...
A Comparative Study on the Performance of the Top
... DBMSs. In particular, each DBMS is characterized by a set of diverse functional and non-functional features and specs each having their advantages and disadvantages. One of which is performance which determines how fast a DBMS can process and execute queries. This paper presents a comparative study ...
... DBMSs. In particular, each DBMS is characterized by a set of diverse functional and non-functional features and specs each having their advantages and disadvantages. One of which is performance which determines how fast a DBMS can process and execute queries. This paper presents a comparative study ...
Database System Concepts, 6 th Ed
... SQL:1999 allows more than one function/procedure of the same name (called name overloading), as long as the number of arguments differ, or at least the types of the arguments differ Database System Concepts - 6th Edition ...
... SQL:1999 allows more than one function/procedure of the same name (called name overloading), as long as the number of arguments differ, or at least the types of the arguments differ Database System Concepts - 6th Edition ...
File - You have to dream before your dreams can come
... • Procedural language support : PL/SQL is a development tools not only for data manipulation futures but also provide the conditional checking, looping or branching operations same as like other programming language. • Reduces network traffic : This one is great advantages of PL/SQL. Because PL/SQL ...
... • Procedural language support : PL/SQL is a development tools not only for data manipulation futures but also provide the conditional checking, looping or branching operations same as like other programming language. • Reduces network traffic : This one is great advantages of PL/SQL. Because PL/SQL ...
PL SQL - College of Computing & Informatics
... –Reference non-PL/SQL variables as host variables. –Prefix the references with a colon (:). ...
... –Reference non-PL/SQL variables as host variables. –Prefix the references with a colon (:). ...
DIS SW6000 Conference Management Software
... Running the CUI on a Windows 7 operating system is only suitable for systems with up to 10 users. With more than 10 users, the CUI must run on a Windows Server. For systems with less than 25 users, the SQL Server Express Edition can be used. For systems with more than 25 users, it is recommended to ...
... Running the CUI on a Windows 7 operating system is only suitable for systems with up to 10 users. With more than 10 users, the CUI must run on a Windows Server. For systems with less than 25 users, the SQL Server Express Edition can be used. For systems with more than 25 users, it is recommended to ...
Updating an MS SQL database from SAS
... particular, already existing table is possible, but more complicated than just creating a new table from scratch. The MS SQL table does not need to have a structure already, possibly existing content and the structure can even be removed and a new structure can be built and new data can be transferr ...
... particular, already existing table is possible, but more complicated than just creating a new table from scratch. The MS SQL table does not need to have a structure already, possibly existing content and the structure can even be removed and a new structure can be built and new data can be transferr ...
High Availability and Disaster Recovery with the HP Enterprise
... This document is provided “as-is”. Information and views expressed in this document, including URL and other Internet Web site references, may change without notice; you bear the risk of using it. Some examples depicted herein are provided for illustration only and are fictitious. No real associatio ...
... This document is provided “as-is”. Information and views expressed in this document, including URL and other Internet Web site references, may change without notice; you bear the risk of using it. Some examples depicted herein are provided for illustration only and are fictitious. No real associatio ...
ppt
... Problem can be solved by SQL mechanism that serves to serialize the execution of the two function executions Execution of functions is serial if one function executes completely before any other function begins Execution is serializable if they behave as if they were run serially, even though execut ...
... Problem can be solved by SQL mechanism that serves to serialize the execution of the two function executions Execution of functions is serial if one function executes completely before any other function begins Execution is serializable if they behave as if they were run serially, even though execut ...
SAP – SQL Server Development
... Details at http://www.sap.com/benchmark SAP AG 2005, SAP – SQL Server Development / Christian Hiller / ‹#› ...
... Details at http://www.sap.com/benchmark SAP AG 2005, SAP – SQL Server Development / Christian Hiller / ‹#› ...
Tips and Tricks - AppDynamics Documentation
... Use AppDynamics for Databases to quickly find out which stored procedures or batches are taking the time, and which have high CXPACKET wait. Once these have been identified, drill-down to establish which individual SQL's the wait is on. Once isolated, use a tool such as the SQL Server Index Tuning W ...
... Use AppDynamics for Databases to quickly find out which stored procedures or batches are taking the time, and which have high CXPACKET wait. Once these have been identified, drill-down to establish which individual SQL's the wait is on. Once isolated, use a tool such as the SQL Server Index Tuning W ...
Chapter 2 - High Point University
... Identify the names of the columns that accept nonnull values, then list only the non-null values after the VALUES command ...
... Identify the names of the columns that accept nonnull values, then list only the non-null values after the VALUES command ...
SQL Tuning Advisor - University System of Georgia
... Automated statistics gathering on by default Right after database is built it may take some time to catch up For testing at SunGard SCT, DBMS_STATS.GATHER_DATABASE_STATS invoked manually to get to good state ...
... Automated statistics gathering on by default Right after database is built it may take some time to catch up For testing at SunGard SCT, DBMS_STATS.GATHER_DATABASE_STATS invoked manually to get to good state ...
Ensuring transaction integrity
... • SET SALE_PRICE = 0.85*STANDARD_PRICE • WHERE STANDARD_PRICE < 400; • END (To run this procedure we would use: EXEC ...
... • SET SALE_PRICE = 0.85*STANDARD_PRICE • WHERE STANDARD_PRICE < 400; • END (To run this procedure we would use: EXEC ...
Python MySQL Database Access
... If a connection is established with the datasource, then a Connection Object is returned and saved into db for further use, otherwise db is set to None. Next, db object is used to create a cursor object, which in turn is used to execute SQL queries. Finally, before coming out, it ensures that databa ...
... If a connection is established with the datasource, then a Connection Object is returned and saved into db for further use, otherwise db is set to None. Next, db object is used to create a cursor object, which in turn is used to execute SQL queries. Finally, before coming out, it ensures that databa ...
08_DBApplicationDeve.. - School of Information Technologies
... PDOStatement class: Precompiled, parameterized SQL statements: Structure is fixed after call to PDO::prepare() Values of parameters are determined at run-time Fetch and store routines are executed when PDOStatement::execute() is executed to communicate argument values with DBMS PDOStatemen ...
... PDOStatement class: Precompiled, parameterized SQL statements: Structure is fixed after call to PDO::prepare() Values of parameters are determined at run-time Fetch and store routines are executed when PDOStatement::execute() is executed to communicate argument values with DBMS PDOStatemen ...
SQL Server Command
... This chapter explores various command-line utilities that ship with SQL Server. These utilities give administrators a different way to access the database engine and its related components. In some cases, they provide functionality that is also available with SQL Server’s graphical user interface (G ...
... This chapter explores various command-line utilities that ship with SQL Server. These utilities give administrators a different way to access the database engine and its related components. In some cases, they provide functionality that is also available with SQL Server’s graphical user interface (G ...
Title of Course
... The sqlLib.connect() system function creates a named connection to a database at run time, and makes that connection active. ...
... The sqlLib.connect() system function creates a named connection to a database at run time, and makes that connection active. ...
Microsoft High Availability
... 2008 Enterprise, Windows Server 2008 Datacenter, and Windows Server 2008 for ItaniumBased Systems, are designed to fully support fault-tolerant servers. Fault-tolerant servers are those that have complete redundancy across all hardware components. If a primary component fails, the secondary componen ...
... 2008 Enterprise, Windows Server 2008 Datacenter, and Windows Server 2008 for ItaniumBased Systems, are designed to fully support fault-tolerant servers. Fault-tolerant servers are those that have complete redundancy across all hardware components. If a primary component fails, the secondary componen ...
19:29, 30 May 2006
... in a stored procedure, some database servers, such as Oracle[5] and MS-SQL[6], provide an extra layer of defence by executing the dynamic query under the caller’s permission (i.e. invoker’s right). That is, except for granting the user/role permission to access the stored procedure, we also have t ...
... in a stored procedure, some database servers, such as Oracle[5] and MS-SQL[6], provide an extra layer of defence by executing the dynamic query under the caller’s permission (i.e. invoker’s right). That is, except for granting the user/role permission to access the stored procedure, we also have t ...
ORACLE EXADATA MACHINE X2
... Oracle has implemented a smart flash cache directly in the Oracle Exadata Storage Server. The Exadata Smart Flash Cache holds frequently accessed data in very fast flash storage while most of the data is kept in very cost effective disk storage. This happens automatically without the user having to ...
... Oracle has implemented a smart flash cache directly in the Oracle Exadata Storage Server. The Exadata Smart Flash Cache holds frequently accessed data in very fast flash storage while most of the data is kept in very cost effective disk storage. This happens automatically without the user having to ...
Advanced Topics on SQL Injection Protection
... in a stored procedure, some database servers, such as Oracle[5] and MS-SQL[6], provide an extra layer of defence by executing the dynamic query under the caller’s permission (i.e. invoker’s right). That is, except for granting the user/role permission to access the stored procedure, we also have t ...
... in a stored procedure, some database servers, such as Oracle[5] and MS-SQL[6], provide an extra layer of defence by executing the dynamic query under the caller’s permission (i.e. invoker’s right). That is, except for granting the user/role permission to access the stored procedure, we also have t ...
Migrating AIMS SQL between MS SQL servers
... 4. If you are not using the default TCP/IP port, 1433, for SQL Server you should ensure that the SQL Server Browser service is started on the server. 5. 64-bit Windows Clients: If you are installing AIMS on a 64-bit version of Windows, you still need to install a 32-bit SQL Server client because AIM ...
... 4. If you are not using the default TCP/IP port, 1433, for SQL Server you should ensure that the SQL Server Browser service is started on the server. 5. 64-bit Windows Clients: If you are installing AIMS on a 64-bit version of Windows, you still need to install a 32-bit SQL Server client because AIM ...
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.