SAP_R3PerformanceTuningGuide
... number of rows. With large tables, indexes have a large effect on database I/O performance. Operations, which search and operate upon a single database row or small number of database rows, should have a nonclustered or clustered index defined upon the column or columns that provide the highest leve ...
... number of rows. With large tables, indexes have a large effect on database I/O performance. Operations, which search and operate upon a single database row or small number of database rows, should have a nonclustered or clustered index defined upon the column or columns that provide the highest leve ...
How to Back Up and Restore the System Configuration
... out of control. XProtect Corporate does not, however, automatically flush the SQL Server’s transaction log at specific intervals. This is because users have different needs. Some want to be able to undo changes for a very long time, others do not care; what would suit one organization’s needs could ...
... out of control. XProtect Corporate does not, however, automatically flush the SQL Server’s transaction log at specific intervals. This is because users have different needs. Some want to be able to undo changes for a very long time, others do not care; what would suit one organization’s needs could ...
Nobeltec TZ: Microsoft SQL Server problems
... of them) starting with the main component (“Microsoft SQL Server 2008” or “Microsoft SQL server 2005”) Note: Please refer at the Appendix (chapter 1) for an example of all the steps involved in the un-installation under Vista/7. After removing the main component, close the “Programs” control panel a ...
... of them) starting with the main component (“Microsoft SQL Server 2008” or “Microsoft SQL server 2005”) Note: Please refer at the Appendix (chapter 1) for an example of all the steps involved in the un-installation under Vista/7. After removing the main component, close the “Programs” control panel a ...
Chapter 5: Procedures, Functions and Triggers
... running on the user’s workstation (like anonymous PL/SQL program) must meet the RNPS and WNDS purity levels. In contrast, an inline function called from a SQL query in a stored procedure does not have to meet these two purity levels. ...
... running on the user’s workstation (like anonymous PL/SQL program) must meet the RNPS and WNDS purity levels. In contrast, an inline function called from a SQL query in a stored procedure does not have to meet these two purity levels. ...
Storing and Processing Temporal Data in a Main Memory Column
... OF a year ago. Retrieving an old version of a table is called time travel. Companies have a high demand to maintain and query such temporal data. Yet, only few commercial database systems provide support for the time dimension in their products. Oracle has been supporting time travel operators by me ...
... OF a year ago. Retrieving an old version of a table is called time travel. Companies have a high demand to maintain and query such temporal data. Yet, only few commercial database systems provide support for the time dimension in their products. Oracle has been supporting time travel operators by me ...
advance database PLSQL 3
... Using a modularized and layered subprogram design and identifying the benefits of subprograms Working with procedures: Creating and calling procedures Identifying the available parameter-passing modes Using formal and actual parameters Using positional, named, or mixed notation Handling exce ...
... Using a modularized and layered subprogram design and identifying the benefits of subprograms Working with procedures: Creating and calling procedures Identifying the available parameter-passing modes Using formal and actual parameters Using positional, named, or mixed notation Handling exce ...
Ontology Based Query Answering: The Story So Far
... In the absence of an ontology, OBQA coincides with standard query evaluation over plain (graph) databases, but in general, the presence of the ontology makes query answering more involved. As we have seen, to answer a query one may need to take into account instances of concepts and roles not given ...
... In the absence of an ontology, OBQA coincides with standard query evaluation over plain (graph) databases, but in general, the presence of the ontology makes query answering more involved. As we have seen, to answer a query one may need to take into account instances of concepts and roles not given ...
Chapter 2: Relational Model
... E.g. customer_name and account_number attributes of depositor are foreign keys to customer and account respectively. Only values occurring in the primary key attribute of the referenced relation may occur in the foreign key attribute of the referencing relation. ...
... E.g. customer_name and account_number attributes of depositor are foreign keys to customer and account respectively. Only values occurring in the primary key attribute of the referenced relation may occur in the foreign key attribute of the referencing relation. ...
Joins for Hybrid Warehouses: Exploiting Massive Parallelism in Hadoop and Enterprise Data Warehouses.
... minimize data movement. They use broadcast joins when one of the tables participating in the join is small enough, and the other is very large, to save communication cost. The databases also exploit careful physical data organization for joins. They rely on query workloads to identify joins between ...
... minimize data movement. They use broadcast joins when one of the tables participating in the join is small enough, and the other is very large, to save communication cost. The databases also exploit careful physical data organization for joins. They rely on query workloads to identify joins between ...
SQL Databases
... In order to process the resulting rows, the user should provide a cursor device. Cursors allow a row-by-row access of the records returned by the ...
... In order to process the resulting rows, the user should provide a cursor device. Cursors allow a row-by-row access of the records returned by the ...
Android-Chapter17-SQL-Databases
... In order to process the resulting rows, the user should provide a cursor device. Cursors allow a row-by-row access of the records returned by the ...
... In order to process the resulting rows, the user should provide a cursor device. Cursors allow a row-by-row access of the records returned by the ...
Data Warehouse and Business Intelligence: Comparative Analysis
... “a copy of transaction data specifically structured for query and analysis.”. A data warehouse contains massive amounts of highly detailed, time-series data used for decision support. Specialized software extracts data from operational databases, then summarizes, reconciles, and manipulates it for b ...
... “a copy of transaction data specifically structured for query and analysis.”. A data warehouse contains massive amounts of highly detailed, time-series data used for decision support. Specialized software extracts data from operational databases, then summarizes, reconciles, and manipulates it for b ...
Using the ORACLE LIBNAME Engine to Reduce the Time it Takes to Extract Data From an ORACLE Database
... Hard coding these parameters can result in a lot of work when you shift between a production and test database and change users responsible for maintain the code. These macro variables can be stored in the “autoexec.sas” file or special macro. SAS/ACCESS ORACLE ENGINE CONNECTION OPTIONS There are a ...
... Hard coding these parameters can result in a lot of work when you shift between a production and test database and change users responsible for maintain the code. These macro variables can be stored in the “autoexec.sas” file or special macro. SAS/ACCESS ORACLE ENGINE CONNECTION OPTIONS There are a ...
Title of Presentation - University of Kansas
... Single Record Report Table • Contains basic bio-demographic data • Campus location where majority of credit hours are taken (only location for this) • Various credit hour and FTE fields covering campus location, special hours (ROTC, Dissertation/Thesis), overall hours, etc. • “Primary” school, majo ...
... Single Record Report Table • Contains basic bio-demographic data • Campus location where majority of credit hours are taken (only location for this) • Various credit hour and FTE fields covering campus location, special hours (ROTC, Dissertation/Thesis), overall hours, etc. • “Primary” school, majo ...
Chapter 2: Relational Model
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
L - Fuzzy Structured Query Language
... which goes beyond the classical set concept by mapping elements to the unit interval between 0 and 1 inclusively [9]. In other words, it is a generalization based on the degree of membership rather than an all inclusive or all exclusive approach. Fuzzy Relational Database Management Systems (FRDBMS) ...
... which goes beyond the classical set concept by mapping elements to the unit interval between 0 and 1 inclusively [9]. In other words, it is a generalization based on the degree of membership rather than an all inclusive or all exclusive approach. Fuzzy Relational Database Management Systems (FRDBMS) ...
Oracle PL/SQL
... create or replace trigger only_nulls after update on BOOK for each row when (old.price is null) -- notice the colon with OLD is not used here ...
... create or replace trigger only_nulls after update on BOOK for each row when (old.price is null) -- notice the colon with OLD is not used here ...
Storage/Database Engine
... With the introduction of NVDIMM technology, in-memory databases will now be able to run at full speed and maintain data in the event of power failure. A Non-Volatile DIMM (NVDIMM), is a computer memory DRAM DIMM module that retains data even when electrical power is removed either from an unexpected ...
... With the introduction of NVDIMM technology, in-memory databases will now be able to run at full speed and maintain data in the event of power failure. A Non-Volatile DIMM (NVDIMM), is a computer memory DRAM DIMM module that retains data even when electrical power is removed either from an unexpected ...
SQL - Electrical and Computer Engineering Department
... History IBM Sequel language developed as part of System R project at the ...
... History IBM Sequel language developed as part of System R project at the ...
Oracle PL/SQL FAQ
... Is there a limit on the size of a PL/SQL block? Yes, the max size is not an explicit byte limit, but related to the parse tree that is created when you compile the code. You can run the following select statement to query the size of an existing package or procedure: SQL> select * from dba_object_si ...
... Is there a limit on the size of a PL/SQL block? Yes, the max size is not an explicit byte limit, but related to the parse tree that is created when you compile the code. You can run the following select statement to query the size of an existing package or procedure: SQL> select * from dba_object_si ...
Interacting with the Oracle Server
... • Database columns and identifiers should have distinct names • Syntax errors can arise because PL/SQL checks the database first or a column in the table • The names of local variables and formal parameters take precedence over the names of database tables • The names of database table columns take ...
... • Database columns and identifiers should have distinct names • Syntax errors can arise because PL/SQL checks the database first or a column in the table • The names of local variables and formal parameters take precedence over the names of database tables • The names of database table columns take ...
mod-3
... of information about relations, including: The schema for each relation. The domain of values associated with each attribute. ...
... of information about relations, including: The schema for each relation. The domain of values associated with each attribute. ...
R - SJSU Department of Computer Science
... Used to store data and programs when they are not being processed More permanent than main memory, as data and programs are retained when the power is turned off E.g. magnetic disks, hard disks Essentially every computer has some sort of secondary storage, which is a form of storage that is both sig ...
... Used to store data and programs when they are not being processed More permanent than main memory, as data and programs are retained when the power is turned off E.g. magnetic disks, hard disks Essentially every computer has some sort of secondary storage, which is a form of storage that is both sig ...
Advanced SQL Injection In SQL Server Applications
... the popular Microsoft Internet Information Server/Active Server Pages/SQL Server platform. It discusses the various ways in which SQL can be 'injected' into the application and addresses some of the data validation and database lockdown issues that are related to this class of attack. The paper is i ...
... the popular Microsoft Internet Information Server/Active Server Pages/SQL Server platform. It discusses the various ways in which SQL can be 'injected' into the application and addresses some of the data validation and database lockdown issues that are related to this class of attack. The paper is i ...