Data Management in the Cloud
... • R. Cattell: Scalable SQL and NoSQL Data Stores. SIGMOD Rec. 39(4), ...
... • R. Cattell: Scalable SQL and NoSQL Data Stores. SIGMOD Rec. 39(4), ...
Databases
... • Database management system (DBMS) A combination of software and data, including a physical database, a database engine, and a database schema – Physical database A collection of files that contain the data – Database engine Software that supports access to and modification of the database contents ...
... • Database management system (DBMS) A combination of software and data, including a physical database, a database engine, and a database schema – Physical database A collection of files that contain the data – Database engine Software that supports access to and modification of the database contents ...
databaseConcept
... Application insulated from how data is structured or stored Logical data independence: we can change the conceptual schema without changing the application program (internal schema) Physical data independence: we can change the internal schema without changing the conceptual schema. It might be beca ...
... Application insulated from how data is structured or stored Logical data independence: we can change the conceptual schema without changing the application program (internal schema) Physical data independence: we can change the internal schema without changing the conceptual schema. It might be beca ...
Getting all of your data into PI
... • UNIX systems love ASCII files (Windows too to a lesser extent) • Files can hold a surprising amount of data in a reasonable amount of space (if you don’t keep them around for too long) • Files can be easily manipulated before being passed to BFI – which is good because BFI can be a bit particular… ...
... • UNIX systems love ASCII files (Windows too to a lesser extent) • Files can hold a surprising amount of data in a reasonable amount of space (if you don’t keep them around for too long) • Files can be easily manipulated before being passed to BFI – which is good because BFI can be a bit particular… ...
AIS and Business Process
... data for use by a computer application or system (different with program file, configuration files, or directory files) Two types of data files: master files and transaction files (what for?) ...
... data for use by a computer application or system (different with program file, configuration files, or directory files) Two types of data files: master files and transaction files (what for?) ...
File
... Maintenance of a TPS • System Analyst - specifies system using input from customer; provides complete description of functionality from customer’s and user’s point of view • Database Designer - specifies structure of data that will be stored in database • Application Programmer implements applicatio ...
... Maintenance of a TPS • System Analyst - specifies system using input from customer; provides complete description of functionality from customer’s and user’s point of view • Database Designer - specifies structure of data that will be stored in database • Application Programmer implements applicatio ...
Internet Forms and Database
... the fields are set in the initialize function. In other cases only a Key value is set and the code in the initialize function then initializes all of the “dependent” fields based on this. You need to pick the method that works best for your system design. ...
... the fields are set in the initialize function. In other cases only a Key value is set and the code in the initialize function then initializes all of the “dependent” fields based on this. You need to pick the method that works best for your system design. ...
Microsoft Office XP: Introductory Course
... A record is a complete set of data. Each record is made up of fields. Each field is identified by a field name. The actual data entered into a field is called an entry. Creating a database creates a file that will hold database objects. To store data, a table must first be created. As in other Offic ...
... A record is a complete set of data. Each record is made up of fields. Each field is identified by a field name. The actual data entered into a field is called an entry. Creating a database creates a file that will hold database objects. To store data, a table must first be created. As in other Offic ...
Process Models
... Multi-dimensional indexes not common “avoid too many back-and-forth function calls” ...
... Multi-dimensional indexes not common “avoid too many back-and-forth function calls” ...
Graph Databases
... • cypher queries are much simpler than SQL queries. In fact, a long SQL query can frequently be compressed to many fewer lines in Cypher. • By using Neo4j and Cypher, mismatch between the conceptual and physical models of their database is reduced. ...
... • cypher queries are much simpler than SQL queries. In fact, a long SQL query can frequently be compressed to many fewer lines in Cypher. • By using Neo4j and Cypher, mismatch between the conceptual and physical models of their database is reduced. ...
Searching and Selecting Data from R/3
... SE16 to look up tables (if you know the name of the table) SE11 to look up everything including tables SE15 to look up data elements that may exist in several tables Where used can show you programs, other tables, and logical databases where the table is used ...
... SE16 to look up tables (if you know the name of the table) SE11 to look up everything including tables SE15 to look up data elements that may exist in several tables Where used can show you programs, other tables, and logical databases where the table is used ...
Ch3: Database Modeling Building Blocks
... ISAM index Indexed Sequential Access Method (ISAM) uses a simple structure with a list of record numbers ISAM indexes are best used for static data Hash table A hash table is a copy of data but rearranged into a different and more efficiently accessed order depending on a hashing algorithm ...
... ISAM index Indexed Sequential Access Method (ISAM) uses a simple structure with a list of record numbers ISAM indexes are best used for static data Hash table A hash table is a copy of data but rearranged into a different and more efficiently accessed order depending on a hashing algorithm ...
Intro
... – Multiple file formats, duplication of information in different files – Multiple records formats within the same file – No order enforced between fields ...
... – Multiple file formats, duplication of information in different files – Multiple records formats within the same file – No order enforced between fields ...
Information Systems
... of the formula is displayed in the cell – If we’ve set up the spreadsheet correctly, we could add or remove tutors, add additional weeks of data, or change any of the data we have already stored and the corresponding calculations would automatically be updated ...
... of the formula is displayed in the cell – If we’ve set up the spreadsheet correctly, we could add or remove tutors, add additional weeks of data, or change any of the data we have already stored and the corresponding calculations would automatically be updated ...
slidedeck - Mindy Curnutt
... – Rename the Windows Server – Rename the SQL Server – Reassign the IP Address ...
... – Rename the Windows Server – Rename the SQL Server – Reassign the IP Address ...
Databases and Database management systems (DBMS) Contents
... 4.3 Queries and reports The most common complaint concerning databases is the ease of being able to enter data into them compared to the difficulty of getting it back out again. Query and reporting facilities are designed specifically to make the process of extracting data easier. We will be looking ...
... 4.3 Queries and reports The most common complaint concerning databases is the ease of being able to enter data into them compared to the difficulty of getting it back out again. Query and reporting facilities are designed specifically to make the process of extracting data easier. We will be looking ...
Access Lab 3 Questions
... a. Could be used to enter data in a table b. Could be used to modify the structure of the table c. None of the above 3. John is working on the Customers table and needs to know if any customers have a balance due that is greater than $1000.00. To find out, he would … a. define a new table b. create ...
... a. Could be used to enter data in a table b. Could be used to modify the structure of the table c. None of the above 3. John is working on the Customers table and needs to know if any customers have a balance due that is greater than $1000.00. To find out, he would … a. define a new table b. create ...
Relational Terminology - California State University, East Bay
... Relation for each entity with attributes shown as columns(fields) and each occurrence as a row(record). ...
... Relation for each entity with attributes shown as columns(fields) and each occurrence as a row(record). ...
Data modelling patterns used for integration of operational data stores
... Timed extracts are notoriously unreliable, but novice DBAs often mistakenly choose this technique. Here, an extract of data is taken at a specific time. Data is captured within a particular timeframe. If the process fails before it completes all steps, duplicate rows could be introduced into the t ...
... Timed extracts are notoriously unreliable, but novice DBAs often mistakenly choose this technique. Here, an extract of data is taken at a specific time. Data is captured within a particular timeframe. If the process fails before it completes all steps, duplicate rows could be introduced into the t ...
Database Systems
... Rows are sets of values for the columns (attribute values) Primary key: a set of columns that uniquely identifies each row Each row must be unique given the primary key (no duplicates) Rows are referenced by the primary key Row order cannot be determined by the user Does not make sense to say “the f ...
... Rows are sets of values for the columns (attribute values) Primary key: a set of columns that uniquely identifies each row Each row must be unique given the primary key (no duplicates) Rows are referenced by the primary key Row order cannot be determined by the user Does not make sense to say “the f ...
Physical Database Design for Relational Databases
... index will be a primary index; otherwise, index will be a clustering index. Each relation can only have either a primary index or a clustering index. Secondary indexes provide a mechanism for specifying an additional key for a base relation that can be used to retrieve data more efficiently. Pea ...
... index will be a primary index; otherwise, index will be a clustering index. Each relation can only have either a primary index or a clustering index. Secondary indexes provide a mechanism for specifying an additional key for a base relation that can be used to retrieve data more efficiently. Pea ...