Document
... Needed since operations may get re-executed during recovery When recovering after failure: Transaction Ti needs to be undone if the log contains the record, but does not contain the record .
...
... Needed since operations may get re-executed during recovery When recovering after failure: Transaction Ti needs to be undone if the log contains the record
Architecture of Pattern Management Software System
... How to implement repository of reusable artifacts? One solution is to build these systems directly on top of a file-system. OMG introduces Reusable Asset Specification (RAS) [8] that helps to organize reusable assets that describe solution to the software development problem. Asset is implemented as ...
... How to implement repository of reusable artifacts? One solution is to build these systems directly on top of a file-system. OMG introduces Reusable Asset Specification (RAS) [8] that helps to organize reusable assets that describe solution to the software development problem. Asset is implemented as ...
Multiple Engine Architecture: A Comparison of Database Management Systems Using the SAS/ACCESS Interface
... The DBLOAD procedure runs in interactive display manager, interactive line, and batch modes. It enables you to create and load a database using data from a SAS data file, from a view created with the SQ L procedure. or from another database (using a view descriptor created with the ACCESS procedure) ...
... The DBLOAD procedure runs in interactive display manager, interactive line, and batch modes. It enables you to create and load a database using data from a SAS data file, from a view created with the SQ L procedure. or from another database (using a view descriptor created with the ACCESS procedure) ...
stars - Department of Computer Science and Information Systems
... However, larger-scale applications may need to integrate information from several databases, possibly supporting different data models To integrate information stored in such heterogeneous databases it is necessary to form a single, integrated schema Conflicts may existing between the various ...
... However, larger-scale applications may need to integrate information from several databases, possibly supporting different data models To integrate information stored in such heterogeneous databases it is necessary to form a single, integrated schema Conflicts may existing between the various ...
Chapter 3 Effects of IT on Strategy and Competition
... Relational Databases • Data is organized in tables – Columns (fields) represent different data categories – Rows (records) contain actual data values ...
... Relational Databases • Data is organized in tables – Columns (fields) represent different data categories – Rows (records) contain actual data values ...
Understanding Common Oracle Wait Event - DOUG
... rectify those - it all seems so simple when it comes out in the book. Whether you are a veteran DBA who have seen all the battles since the Civil War or a rookie just starting out, this book is for you, a vital weapon in your arsenal, especially the scripts for identifying trouble spots. If I'm allo ...
... rectify those - it all seems so simple when it comes out in the book. Whether you are a veteran DBA who have seen all the battles since the Civil War or a rookie just starting out, this book is for you, a vital weapon in your arsenal, especially the scripts for identifying trouble spots. If I'm allo ...
The Twain Shall Meet: Facilitating Data Exchange between SAS and Matlab
... choice. Unfortunately, Excel’s involvement imposes limits on the size of a SAS dataset (or Matlab array) that can be moved in a single pass. Size of an Excel 2002 spreadsheet, for example, is limited to 65,536 rows and 256 columns. To transfer a larger block of data, one needs to break it up into se ...
... choice. Unfortunately, Excel’s involvement imposes limits on the size of a SAS dataset (or Matlab array) that can be moved in a single pass. Size of an Excel 2002 spreadsheet, for example, is limited to 65,536 rows and 256 columns. To transfer a larger block of data, one needs to break it up into se ...
Query Joins
... columns and marks the fields he or she wants to include in the answer. • Defaults are available for summarizing and manipulating the data. ...
... columns and marks the fields he or she wants to include in the answer. • Defaults are available for summarizing and manipulating the data. ...
Reading Report 2 - Informatics Homepages Server
... Semijoins : Send only the column(s) of A that are needed to evaluate the join predicates from Site 1 to Site 2, find the tuples of B that qualify the join at Site 2, send back to Site 1 and then match A with B tuples at Site 1. Double-Pipelined Hash Joins: Construct two main-memory hash tables for A ...
... Semijoins : Send only the column(s) of A that are needed to evaluate the join predicates from Site 1 to Site 2, find the tuples of B that qualify the join at Site 2, send back to Site 1 and then match A with B tuples at Site 1. Double-Pipelined Hash Joins: Construct two main-memory hash tables for A ...
Session3_Module5
... Partitioned View: A view created using horizontally partitioned data from one or more tables is referred to as a partitioned view. If the base tables reside in the same server, the view is referred to as a local partitioned view. If the base tables reside in different servers, the view is referred t ...
... Partitioned View: A view created using horizontally partitioned data from one or more tables is referred to as a partitioned view. If the base tables reside in the same server, the view is referred to as a local partitioned view. If the base tables reside in different servers, the view is referred t ...
Using Oracle Data Guard to protect your database.
... A network between the two! Primary system tnsname to the standby listener Standby system tnsname to the primary listener If the pipe isn’t big enough to send the redo it isn’t going to work! - And no, I do not recommend sneaker net! ...
... A network between the two! Primary system tnsname to the standby listener Standby system tnsname to the primary listener If the pipe isn’t big enough to send the redo it isn’t going to work! - And no, I do not recommend sneaker net! ...
SQL - MIT5314
... ??? How Much of a RAM/Storage Savings is there ??? We only work with single tables The largest table is Class: ...
... ??? How Much of a RAM/Storage Savings is there ??? We only work with single tables The largest table is Class: ...
COMP9321 Web Application Engineering Semester 2, 2015
... • How do we store and access this data over the web ? Search Website • Data operations are mainly reading index files for answering queries (Reads) ...
... • How do we store and access this data over the web ? Search Website • Data operations are mainly reading index files for answering queries (Reads) ...
ppt
... Since each Mariposa site is free to bid on any business of interest, it has total local autonomy. Each site is expected to maximize its individual profit per unit of operating time and to bid on those queries that it feels will accomplish this goal. ...
... Since each Mariposa site is free to bid on any business of interest, it has total local autonomy. Each site is expected to maximize its individual profit per unit of operating time and to bid on those queries that it feels will accomplish this goal. ...
Document
... • Problems 3 and 5 require quality improvements in process execution and in data management governance and will be addressed in Part II. ...
... • Problems 3 and 5 require quality improvements in process execution and in data management governance and will be addressed in Part II. ...
Designing and implementing a web-based data warehouse solution
... structural form which has been loaded into an OLAP cube running Microsoft SQL Server Analysis Services. Because the analyzed data is read-only within the cube techniques for pre-calculation of results across hierarchical levels of granularity are made possible which has been shown to be very effecti ...
... structural form which has been loaded into an OLAP cube running Microsoft SQL Server Analysis Services. Because the analyzed data is read-only within the cube techniques for pre-calculation of results across hierarchical levels of granularity are made possible which has been shown to be very effecti ...
Dealing with threats to databases
... Use base tables instead of views for critical objects (e.g. users, processes) Use absolute execution paths for critical objects (e.g. SYS.dbms_crypto) Compare the repository regularly against a (secure) baseline ...
... Use base tables instead of views for critical objects (e.g. users, processes) Use absolute execution paths for critical objects (e.g. SYS.dbms_crypto) Compare the repository regularly against a (secure) baseline ...
Unstructured Data Management with Oracle Database 12c
... For decades now, Oracle database technology has been used to address the unique problems encountered when managing large volumes of all forms of information. Databases are often used to catalog and reference documents, images and media content stored in files through “pointer-based” implementations. ...
... For decades now, Oracle database technology has been used to address the unique problems encountered when managing large volumes of all forms of information. Databases are often used to catalog and reference documents, images and media content stored in files through “pointer-based” implementations. ...
Query Languages for XML
... IDREFs can be referenced using function id() id() can also be applied to sets of references such as IDREFS and even to strings containing multiple references separated by blanks E.g. /bank-2/account/id(@owner) returns all customers referred to from the owners attribute ...
... IDREFs can be referenced using function id() id() can also be applied to sets of references such as IDREFS and even to strings containing multiple references separated by blanks E.g. /bank-2/account/id(@owner) returns all customers referred to from the owners attribute ...