Lecture Notes - BioU - Pittsburgh Supercomputing Center
... • The following material is the result of a curriculum development effort to provide a set of courses to support bioinformatics efforts involving students from the biological sciences, computer science, and mathematics departments. They have been developed as a part of the NIH funded project “Assist ...
... • The following material is the result of a curriculum development effort to provide a set of courses to support bioinformatics efforts involving students from the biological sciences, computer science, and mathematics departments. They have been developed as a part of the NIH funded project “Assist ...
Optimizing select-project
... In general, we could formulate the optimization problem of relational algebra expressions as follows: Input: A relational algebra expression e. Output: A relational algebra expression e0 such that: 1. e0 is equivalent to e (denoted as e0 ≡ e), in the sense that e(D) = e0 (D) for every database D. He ...
... In general, we could formulate the optimization problem of relational algebra expressions as follows: Input: A relational algebra expression e. Output: A relational algebra expression e0 such that: 1. e0 is equivalent to e (denoted as e0 ≡ e), in the sense that e(D) = e0 (D) for every database D. He ...
Data Integrity
... - can read only committed records - if T is reading or writing X, no other Xaction can change X until T commits - if T is updating a set of records (identified by WHERE clause), no other Xaction can change this set until T commits Weaker versions (non-serializable) levels can also be declared ...
... - can read only committed records - if T is reading or writing X, no other Xaction can change X until T commits - if T is updating a set of records (identified by WHERE clause), no other Xaction can change this set until T commits Weaker versions (non-serializable) levels can also be declared ...
redo – to revise or reconstruct -
... consider it imperative to properly manage the increased redo generation rates. Today Oracle databases can generate redo volumes, in short periods, with magnitudes that exceed the size of the database from which it was generated. Consequently, Oracle scientists and their IT colleagues are tasked with ...
... consider it imperative to properly manage the increased redo generation rates. Today Oracle databases can generate redo volumes, in short periods, with magnitudes that exceed the size of the database from which it was generated. Consequently, Oracle scientists and their IT colleagues are tasked with ...
Active using asp (Active Server Pages)
... example the tag that we shall use extensively in what follows gets passed to ColdFusion
Server to deal with. ColdFusion will then query the datasource and return the output. That output is
then available as output in HTML format.
In what follows we use a text editor and an FTP client. Ther ...
... example the
as select branch_name
... select branch_name, avg (balance) from account group by branch_name having avg (balance) > 1200 Note: predicates in the having clause are applied after the formation of groups whereas predicates in the where ...
... select branch_name, avg (balance) from account group by branch_name having avg (balance) > 1200 Note: predicates in the having clause are applied after the formation of groups whereas predicates in the where ...
Fundamentals of Database Development (with Delphi)
... multi−tier architecture is that client applications can be very small because the application servers do most of the work. This enables you to write what are called thin−client applications. When we write a database application in Delphi, we need to use some database engine to access a data in a dat ...
... multi−tier architecture is that client applications can be very small because the application servers do most of the work. This enables you to write what are called thin−client applications. When we write a database application in Delphi, we need to use some database engine to access a data in a dat ...
Chapter 3
... datafiles when a tablespace is dropped • OMF handles datafile creation, naming, and sizing • The parameter of DB_CREATE_FILE_DEST initialization sets the location of datafiles when using OMF • The DB_CREATE_ONLINE_LOG_DEST_ initialization parameters set the location of control files and redo log fil ...
... datafiles when a tablespace is dropped • OMF handles datafile creation, naming, and sizing • The parameter of DB_CREATE_FILE_DEST initialization sets the location of datafiles when using OMF • The DB_CREATE_ONLINE_LOG_DEST_ initialization parameters set the location of control files and redo log fil ...
Benchmarking Cloud Serving Systems with YCSB. ()
... used to support serving workloads (though the result of a batch computation may be cached into a serving store for low-latency access). Other researchers [26] are doing work to benchmark analytical systems such as these. Similarly, there are existing benchmarks for a variety of data storage systems ...
... used to support serving workloads (though the result of a batch computation may be cached into a serving store for low-latency access). Other researchers [26] are doing work to benchmark analytical systems such as these. Similarly, there are existing benchmarks for a variety of data storage systems ...
EPICS Version 4 Development Plan
... independently evaluate many platforms for high level physics applications and determine that PVAccess and PVData appear the most promising. 2010 meeting at BNL with Greg White (SLAC), James Roland (Diamond), and those named above to develop the limited set of PVData to be implemented in PVData and P ...
... independently evaluate many platforms for high level physics applications and determine that PVAccess and PVData appear the most promising. 2010 meeting at BNL with Greg White (SLAC), James Roland (Diamond), and those named above to develop the limited set of PVData to be implemented in PVData and P ...
Programming Example: The Seek method
... Our tentative solution is to put a Do While loop within the loop that navigates the whole recordset. The conditional clause for the inner loop is that SalesTotal is less than Target. The next line adds the value of rs(1), which is the amount of the order, to the variable SalesTotal. Next we put our ...
... Our tentative solution is to put a Do While loop within the loop that navigates the whole recordset. The conditional clause for the inner loop is that SalesTotal is less than Target. The next line adds the value of rs(1), which is the amount of the order, to the variable SalesTotal. Next we put our ...
MySQL Tutorial
... table.FRM file containing information about the table structure table.MYD file containing the row data table.MYI containing any indexes belonging with this table, as well as some statistics about the table. ...
... table.FRM file containing information about the table structure table.MYD file containing the row data table.MYI containing any indexes belonging with this table, as well as some statistics about the table. ...
Data concurrency
... initiated the first time an executable SQL statement is executed, either after a connection to a database been established or after an existing transaction has been terminated. Once initiated, a transaction must be explicitly terminated by the user or application that initiated it, unless a process ...
... initiated the first time an executable SQL statement is executed, either after a connection to a database been established or after an existing transaction has been terminated. Once initiated, a transaction must be explicitly terminated by the user or application that initiated it, unless a process ...
EMC VSPEX FOR VIRTUALIZED MICROSOFT SQL SERVER 2012 EMC VSPEX
... applications. VSPEX provides partners with the ability to plan and design the business-critical assets required to support Microsoft SQL Server 2012 in a virtualized environment on VSPEX Private Cloud. EMC VSPEX for virtualized Microsoft SQL Server 2012 architecture provides a validated system, capa ...
... applications. VSPEX provides partners with the ability to plan and design the business-critical assets required to support Microsoft SQL Server 2012 in a virtualized environment on VSPEX Private Cloud. EMC VSPEX for virtualized Microsoft SQL Server 2012 architecture provides a validated system, capa ...
Database Lifecycle Management
... This book will explain how to use DLM to: • Automate many of the critical processes involved in the design, development, delivery, and ongoing operation of a database • Improve the organization's knowledge of the database and related applications • Identify opportunities for optimization • Encourag ...
... This book will explain how to use DLM to: • Automate many of the critical processes involved in the design, development, delivery, and ongoing operation of a database • Improve the organization's knowledge of the database and related applications • Identify opportunities for optimization • Encourag ...
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 ...
Integrating MicroStrategy Analytics Platform with Oracle
... The SQL Engine component of MicroStrategy will generate the queries dynamically at runtime. The SQL Engine performs its work based on a metadata model defined to the system. Note, that the MicroStrategy metadata is not used to store joins or schema-type information, such as star or snowflake. Instea ...
... The SQL Engine component of MicroStrategy will generate the queries dynamically at runtime. The SQL Engine performs its work based on a metadata model defined to the system. Note, that the MicroStrategy metadata is not used to store joins or schema-type information, such as star or snowflake. Instea ...
J2EE for Oracle Technologists
... • SmallTalk strategy for interface components • The MVC separation into layers allows you to plug in different front-end clients • Provides ability to separate layers for development – Can reuse layers for new applications Code to access data ...
... • SmallTalk strategy for interface components • The MVC separation into layers allows you to plug in different front-end clients • Provides ability to separate layers for development – Can reuse layers for new applications Code to access data ...
9I DATA GUARD: TRUTH, MYTHS, AND FAILOVER 9i Data Guard
... This two-way communication channel is used to pass requests between sites, and to monitor the health of all of the sites in the broker configuration. The command line interface which is installed when Oracle 9i is installed (by default) is called DGMGRL and its located under $ORACLE_HOME/bin. You do ...
... This two-way communication channel is used to pass requests between sites, and to monitor the health of all of the sites in the broker configuration. The command line interface which is installed when Oracle 9i is installed (by default) is called DGMGRL and its located under $ORACLE_HOME/bin. You do ...