Conceptual vs. Logical vs. Physical Stages of Data Modeling
... Logical Data Model – a model of some user domain** complete and understandable in the detail needed to represent that domain, built according to and consistent with some formal modeling scheme, within a defined scope. ...
... Logical Data Model – a model of some user domain** complete and understandable in the detail needed to represent that domain, built according to and consistent with some formal modeling scheme, within a defined scope. ...
Regulations, Compliance and Privacy Protection
... You can not trust the process to a single individual or a single group but need to build the process in a way so that you have multiple layers of audit. Auditing should be defined and performed by people other than those who work within the database every day. ...
... You can not trust the process to a single individual or a single group but need to build the process in a way so that you have multiple layers of audit. Auditing should be defined and performed by people other than those who work within the database every day. ...
Introduction to Databases Lecture 1 Chapters 1 - 2 Robb T. Koether
... a list of passengers on flight #123. At the very same time, Bob, another airline employee, goes online to change the flight number from #123 to #456. Alice selects the first 50 names of passengers on flight #123. At that moment, the flight number is changed to #456. The last 50 names are not selecte ...
... a list of passengers on flight #123. At the very same time, Bob, another airline employee, goes online to change the flight number from #123 to #456. Alice selects the first 50 names of passengers on flight #123. At that moment, the flight number is changed to #456. The last 50 names are not selecte ...
The Revised NTP TDMS System
... The TDMS database system for the NTP started as an IBM mainframe system at NCTR (National Center for Toxicology Research) in Arkansas in 1980. When the NTP project headquarters moved to NIEHS the TMDS database system moved with it. In 1985 TDMS moved from the IBM system to a VAX/VMS system. One of t ...
... The TDMS database system for the NTP started as an IBM mainframe system at NCTR (National Center for Toxicology Research) in Arkansas in 1980. When the NTP project headquarters moved to NIEHS the TMDS database system moved with it. In 1985 TDMS moved from the IBM system to a VAX/VMS system. One of t ...
grantsReporting
... • Security is based on Purposes or DeptID (for proposals)—see handout • Security changes/updates take one day to be reflected in Reporting database ...
... • Security is based on Purposes or DeptID (for proposals)—see handout • Security changes/updates take one day to be reflected in Reporting database ...
Persisting Result Sets as XML Data Files
... 1. Turn on STATIC cursors. For example: SQLSetStmtAttr (hstmt, SQL_ATTR_CURSOR_TYPE, SQL_CURSOR_STATIC, SQL_IS_INTEGER) NOTE: A result set can be persisted as an XML data file only if the result set is generated using STATIC cursors. 2. Execute a SQL statement. For example: SQLExecDirect (hstmt, "Se ...
... 1. Turn on STATIC cursors. For example: SQLSetStmtAttr (hstmt, SQL_ATTR_CURSOR_TYPE, SQL_CURSOR_STATIC, SQL_IS_INTEGER) NOTE: A result set can be persisted as an XML data file only if the result set is generated using STATIC cursors. 2. Execute a SQL statement. For example: SQLExecDirect (hstmt, "Se ...
Lecture slide
... • Attribute A1 is a foreign key of R1 referring to attribute A2 in R2, if 1) whenever there is a value v of A1, there is a tuple of R2 in which A2 has value v, and 2) A2 is a key of R2 – This is a special case of referential integrity: A2 must be a candidate key of R2 (e.g., CrsCode is a key of Cour ...
... • Attribute A1 is a foreign key of R1 referring to attribute A2 in R2, if 1) whenever there is a value v of A1, there is a tuple of R2 in which A2 has value v, and 2) A2 is a key of R2 – This is a special case of referential integrity: A2 must be a candidate key of R2 (e.g., CrsCode is a key of Cour ...
Abstracts
... Can your end-users see all the information you have stored in your database the way they want to see it? Do they keep coming back asking for different reports or formats of their data and need it yesterday? Chances are you answered yes to both of these questions. So the way to solve these problems i ...
... Can your end-users see all the information you have stored in your database the way they want to see it? Do they keep coming back asking for different reports or formats of their data and need it yesterday? Chances are you answered yes to both of these questions. So the way to solve these problems i ...
Oracle MAA
... • High-performance, simple, drop-in solution for HA and DR, readable at standby • Works for all apps and data types, including packaged apps that can’t be changed – Application desiring flexible HA, active-active, schema changes, platform changes • Use GoldenGate • Avoid or manage active-active conf ...
... • High-performance, simple, drop-in solution for HA and DR, readable at standby • Works for all apps and data types, including packaged apps that can’t be changed – Application desiring flexible HA, active-active, schema changes, platform changes • Use GoldenGate • Avoid or manage active-active conf ...
My Latest Thoughts
... Enterprise Groups. Enterprise groups exist to nurture enterprise assets and to support other groups, such as development teams, within your organization. These enterprise groups should act in an agile manner that reflects the expectations of their customers and the ways in which their customers work ...
... Enterprise Groups. Enterprise groups exist to nurture enterprise assets and to support other groups, such as development teams, within your organization. These enterprise groups should act in an agile manner that reflects the expectations of their customers and the ways in which their customers work ...
AdvancedSQL - My FIT (my.fit.edu)
... Stored Procedures: Stored in the DBMS. Executed by calling them by name, on the command-line or from a program. Permit external applications to operate on the database without knowing about internal details about the database or even SQL. A standard that is not uncommon – put all queries i ...
... Stored Procedures: Stored in the DBMS. Executed by calling them by name, on the command-line or from a program. Permit external applications to operate on the database without knowing about internal details about the database or even SQL. A standard that is not uncommon – put all queries i ...
Extensible Markup Language Databases: A Study
... evidence will support the more efficient form of database to be used. The more efficient systems for specific business such as customer portals, various business transactions can be identified in a systematic manner. Not only does it help us understand NXD’s but also for developing a proper database ...
... evidence will support the more efficient form of database to be used. The more efficient systems for specific business such as customer portals, various business transactions can be identified in a systematic manner. Not only does it help us understand NXD’s but also for developing a proper database ...
WLCG_SCTM2006_AV_COOL - Indico
... – In addition: Oracle (no COOL) at three ‘muon calibration center’ Tier2’s ATLAS pit ...
... – In addition: Oracle (no COOL) at three ‘muon calibration center’ Tier2’s ATLAS pit ...
Processing SSAS multidimensional databsaes
... SSAS database locks will cause some threads to error SSAS is entirely multi-threaded and uses sophisticated algorithms to work out how best to optimise parallel execution using its own processing dependency list ...
... SSAS database locks will cause some threads to error SSAS is entirely multi-threaded and uses sophisticated algorithms to work out how best to optimise parallel execution using its own processing dependency list ...
Physical Database Design II
... The choice of relational schema should be guided by the workload, in addition to redundancy issues: o We may settle for a 3NF schema rather than BCNF. o Workload may influence the choice we make in decomposing a relation into 3NF or BCNF. o We may further decompose a BCNF schema! o We might denormal ...
... The choice of relational schema should be guided by the workload, in addition to redundancy issues: o We may settle for a 3NF schema rather than BCNF. o Workload may influence the choice we make in decomposing a relation into 3NF or BCNF. o We may further decompose a BCNF schema! o We might denormal ...
Introduction to SAS/ACCESS Software
... SAS/ACCESS software is a powerful tool in today's relational processing environments. Many companies around the world use SAS software as their tool of choice to extract information from an existing relational database. SAS Institute has created many versions of the SASlACCESS product to fluently co ...
... SAS/ACCESS software is a powerful tool in today's relational processing environments. Many companies around the world use SAS software as their tool of choice to extract information from an existing relational database. SAS Institute has created many versions of the SASlACCESS product to fluently co ...
Frolund Presentation
... Typical three-tier architectures fail to provide reliability guarantees • At-most-once processing: request is executed once or not at all • Server failure results in error • No knowledge if transaction was successful • Resubmitting request may result in duplicate transaction ...
... Typical three-tier architectures fail to provide reliability guarantees • At-most-once processing: request is executed once or not at all • Server failure results in error • No knowledge if transaction was successful • Resubmitting request may result in duplicate transaction ...
Introducing Web Applications
... The rightmost server is the database server (e.g., oracle or sql server database stored on it, dbms installed on it). This is the only place where database queries (select statements) and updates are run. The sql that is run may be saved in stored procedures (in the database) or it may be dynamicall ...
... The rightmost server is the database server (e.g., oracle or sql server database stored on it, dbms installed on it). This is the only place where database queries (select statements) and updates are run. The sql that is run may be saved in stored procedures (in the database) or it may be dynamicall ...
C#TopTenTips
... use temp objects? More or less… Depending on the environment you are in, people who are not in the know will either horribly overuse TempDB Dumping tables there willy-nilly because they have been told that it is quicker. The other option is guys never use it because once they used a table variable ...
... use temp objects? More or less… Depending on the environment you are in, people who are not in the know will either horribly overuse TempDB Dumping tables there willy-nilly because they have been told that it is quicker. The other option is guys never use it because once they used a table variable ...
On Line Analytical - Ohio State Computer Science and Engineering
... • Integrate schemas from different groups – Semantic mismatches • Different currencies • Different names for same attributes • Different structures for similar tables ...
... • Integrate schemas from different groups – Semantic mismatches • Different currencies • Different names for same attributes • Different structures for similar tables ...
DWDM - Model Question Paper
... dimensions: Time, Customer, Product, and Channel. A particular Sales value (43,613.50) only has meaning when it is qualified by a specific time period (July), a Geography(USA), a product (TV set). For eg. ...
... dimensions: Time, Customer, Product, and Channel. A particular Sales value (43,613.50) only has meaning when it is qualified by a specific time period (July), a Geography(USA), a product (TV set). For eg. ...
web database design strategies
... For this to be true, we need to separate compound info, like an address field into separate fields for city, state, address, etc. This is easy and always a correct idea. Second Normal Form: Every column in a table that is not a key can only apply to the primary key. Here foreign keys are allowed, bu ...
... For this to be true, we need to separate compound info, like an address field into separate fields for city, state, address, etc. This is easy and always a correct idea. Second Normal Form: Every column in a table that is not a key can only apply to the primary key. Here foreign keys are allowed, bu ...
Database model
A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated. The most popular example of a database model is the relational model, which uses a table-based format.