Procedures & Functions & Triggers
... Functions are a type of stored code and are very similar to procedures. The significant difference is that a function is a PL/SQL block that returns a single value. Functions can accept one, many, or no parameters, but a function must have a return clause in the executable section of the function. T ...
... Functions are a type of stored code and are very similar to procedures. The significant difference is that a function is a PL/SQL block that returns a single value. Functions can accept one, many, or no parameters, but a function must have a return clause in the executable section of the function. T ...
Getting to know the ins and outs of Oracle Partitioning in Oracle
... • Base table with all attributes • Virtual (derived) column based on values of other columns • No cross-table references possible • Virtual column is used as partitioning key CREATE TABLE accounts (acc_no number(10) not null, acc_name varchar2(50) not null, ... acc_branch number(2) generated always ...
... • Base table with all attributes • Virtual (derived) column based on values of other columns • No cross-table references possible • Virtual column is used as partitioning key CREATE TABLE accounts (acc_no number(10) not null, acc_name varchar2(50) not null, ... acc_branch number(2) generated always ...
Chs. 1 + 2
... in the 100 PB (petabyte) range. The LHC at CERN produces about 25 PB of data every year, for an estimated 300 PB total so far. Hurray for the Higgs boson! Facebook had about 300 PB in 2014, and its users are producing about 84 PB a year. ...
... in the 100 PB (petabyte) range. The LHC at CERN produces about 25 PB of data every year, for an estimated 300 PB total so far. Hurray for the Higgs boson! Facebook had about 300 PB in 2014, and its users are producing about 84 PB a year. ...
SUGI 28: Performance Tuning SAS/ACCESS(r) for DB2
... used to read all the rows for state=’01’ from source1. SAS opens a second connection to write the rows to the newly created results1 table. If this were a multi-tier configuration the data would have to travel over the network twice. First, from the database server to the SAS server, then from the S ...
... used to read all the rows for state=’01’ from source1. SAS opens a second connection to write the rows to the newly created results1 table. If this were a multi-tier configuration the data would have to travel over the network twice. First, from the database server to the SAS server, then from the S ...
Second Normal Form - Department of Computer Science
... of all functional dependencies that can be derived from F, denoted by F+, is called the CLOSURE of F. We can use Armstrong's axioms, and the 3 derived rules, to compute the closure of F, F+. Database System Concepts ...
... of all functional dependencies that can be derived from F, denoted by F+, is called the CLOSURE of F. We can use Armstrong's axioms, and the 3 derived rules, to compute the closure of F, F+. Database System Concepts ...
Architectures for MLS Database Management Systems
... to be formally modeled and verified. These were very difficult requirements, and great advances toward solving these problems have been made in this project. In the SeaView approach, a multilevel relation is decomposed into single-level relations, based on element-level labeling. Each tuple is then ...
... to be formally modeled and verified. These were very difficult requirements, and great advances toward solving these problems have been made in this project. In the SeaView approach, a multilevel relation is decomposed into single-level relations, based on element-level labeling. Each tuple is then ...
QT QUALITY VISUALIZATION Juha Sippola
... releases with high frequency so that programmers and users willing to test and improve those versions can do it. This process can even be extended to the code management system so that a snapshot of what the programmers are working on at any given time is publicly available. Furthermore, open source ...
... releases with high frequency so that programmers and users willing to test and improve those versions can do it. This process can even be extended to the code management system so that a snapshot of what the programmers are working on at any given time is publicly available. Furthermore, open source ...
Modus v4.4 Database Information
... The content of this manual is for informational use only and is subject to change without notice. Neither Vircom nor anyone else who has been involved in the creation or production of this manual assumes any responsibility or liability for any errors or inaccuracies that may occur in this manual, no ...
... The content of this manual is for informational use only and is subject to change without notice. Neither Vircom nor anyone else who has been involved in the creation or production of this manual assumes any responsibility or liability for any errors or inaccuracies that may occur in this manual, no ...
Assess Oracle`s Role in the Enterprise Database Strategy
... Determine Oracle’s fit with your organization’s size & complexity Large organizations, or those with complex database requirements, will benefit most from Oracle over other database options. • An Info-Tech survey found that large organizations are more satisfied with Oracle (performance, availabili ...
... Determine Oracle’s fit with your organization’s size & complexity Large organizations, or those with complex database requirements, will benefit most from Oracle over other database options. • An Info-Tech survey found that large organizations are more satisfied with Oracle (performance, availabili ...
RDBMS to MongoDB Migration Guide
... To further illustrate the differences between the relational and document models, consider the example of a blogging platform in Figure 6. In this example, the application relies on the RDBMS to join Xve separate tables in order to build the blog entry. With MongoDB, all of the blog data is aggregat ...
... To further illustrate the differences between the relational and document models, consider the example of a blogging platform in Figure 6. In this example, the application relies on the RDBMS to join Xve separate tables in order to build the blog entry. With MongoDB, all of the blog data is aggregat ...
Fact-Finding Techniques and information Gathering
... formulate what is known as the conceptual data model, which is independent of all implementation details of the final database. In later sections there will be more physical considerations in implementing the project. An entity relationship, or ER model, will also be panned out. The ER model is a no ...
... formulate what is known as the conceptual data model, which is independent of all implementation details of the final database. In later sections there will be more physical considerations in implementing the project. An entity relationship, or ER model, will also be panned out. The ER model is a no ...
FHIRFarm * How to build a FHIR Server Farm (quickly)
... Do you need to write software to do this? No: ...
... Do you need to write software to do this? No: ...
Lecture4 - Electrical and Computer Engineering Department
... E.g. re-ordering an item whose quantity in a warehouse has become small, or turning on an alarm light, Triggers cannot be used to directly implement external-world actions, BUT Triggers can be used to record actions-to-be-taken in a separate table Have an external process that repeatedly scans ...
... E.g. re-ordering an item whose quantity in a warehouse has become small, or turning on an alarm light, Triggers cannot be used to directly implement external-world actions, BUT Triggers can be used to record actions-to-be-taken in a separate table Have an external process that repeatedly scans ...
Module 2 Association Rules
... Disk access is the most expensive operations, so need to reduce disk access as much as possible If it is possible, only a single scan of data should be done. If not, then minimize the number of scan If main memory size is unlimited, single disk scan is possible However, main memory size is not unlim ...
... Disk access is the most expensive operations, so need to reduce disk access as much as possible If it is possible, only a single scan of data should be done. If not, then minimize the number of scan If main memory size is unlimited, single disk scan is possible However, main memory size is not unlim ...
Design and Implementation of a Metadata
... in the form of attribute name/value pairs. Files are connected by links, which can also have attributes attached to them. The example shows attribute/value pairs such as [filetype, NewsStory], [IsTabular, yes], [NodeType, SemanticTag], etc. Links can also have attribute/value pairs, such as [LinkTyp ...
... in the form of attribute name/value pairs. Files are connected by links, which can also have attributes attached to them. The example shows attribute/value pairs such as [filetype, NewsStory], [IsTabular, yes], [NodeType, SemanticTag], etc. Links can also have attribute/value pairs, such as [LinkTyp ...
How Much Data
... Database) to create a policy function and apply the policy function to our table, so that it does NOT display certain rows for a given deptno, BUT ONLY when the salary and/or COMM columns are selected. So all rows displayed when I DON'T choose SAL and/or COMM and all rows EXCEPT deptno 10 when I DO ...
... Database) to create a policy function and apply the policy function to our table, so that it does NOT display certain rows for a given deptno, BUT ONLY when the salary and/or COMM columns are selected. So all rows displayed when I DON'T choose SAL and/or COMM and all rows EXCEPT deptno 10 when I DO ...
SQL_Saturday_#600_
... Eliminated nested SP calls which resulted in a single record insert/update Loaded all data into temp table in one query Grouped records allow for all hospitals per measure instead of just one at a time Eliminated performance killing cursors A loop was still needed because SPs cannot be exe ...
... Eliminated nested SP calls which resulted in a single record insert/update Loaded all data into temp table in one query Grouped records allow for all hospitals per measure instead of just one at a time Eliminated performance killing cursors A loop was still needed because SPs cannot be exe ...
E-VALBU: Advanced SQL/XML processing of dictionary data using
... the original XML schema, one has to act with the same consideration regarding constraints and datatypes as when modifying a table with an “ALTER TABLE” statement. The document centric option, in contrast, impresses with unlimited flexibility in terms of revising the underlying XML structure, as well ...
... the original XML schema, one has to act with the same consideration regarding constraints and datatypes as when modifying a table with an “ALTER TABLE” statement. The document centric option, in contrast, impresses with unlimited flexibility in terms of revising the underlying XML structure, as well ...
Database as a Service: Challenges & Opportunities
... level consistency Strong consistency only when needed Support for a spectrum of consistency levels for different types of data Transaction Cost vs. Inconsistency Cost Use ABC-analysis to categorize the data Apply different consistency strategies per ...
... level consistency Strong consistency only when needed Support for a spectrum of consistency levels for different types of data Transaction Cost vs. Inconsistency Cost Use ABC-analysis to categorize the data Apply different consistency strategies per ...
downloading
... another point in space. However, not all points of this (infinite) space will actually house a cell. For each dimension, there is a lower and upper bound, and only within these limits array cells are allowed; we call this area the spatial domain of an array. In the end, arrays look like multidimensi ...
... another point in space. However, not all points of this (infinite) space will actually house a cell. For each dimension, there is a lower and upper bound, and only within these limits array cells are allowed; we call this area the spatial domain of an array. In the end, arrays look like multidimensi ...
epiCentre_UserManual_ITAdministrators
... database in order to streamline the installation process. The installation package also includes the SQL Scripts for creating the database, SQL Server logins, tables and structural table data which you can modify and run manually if you prefer. By far the simplest approach is to use the configuratio ...
... database in order to streamline the installation process. The installation package also includes the SQL Scripts for creating the database, SQL Server logins, tables and structural table data which you can modify and run manually if you prefer. By far the simplest approach is to use the configuratio ...