JDBC
... • Once a connection to a particular database is established, it can be used to send SQL statements from your program to the database. • JDBC provides the Statement, PreparedStatement, and CallableStatement interfaces to facilitate sending statements to a database for execution and receiving executio ...
... • Once a connection to a particular database is established, it can be used to send SQL statements from your program to the database. • JDBC provides the Statement, PreparedStatement, and CallableStatement interfaces to facilitate sending statements to a database for execution and receiving executio ...
Beginning Java
... Exercises: Database Access Using JDBC In this exercise, we will implement a graphical front end to provide user access to a database. We will use the capability of the ResultSet class to scroll through records in both forward and backward directions. The ResultSet class is a table of data representi ...
... Exercises: Database Access Using JDBC In this exercise, we will implement a graphical front end to provide user access to a database. We will use the capability of the ResultSet class to scroll through records in both forward and backward directions. The ResultSet class is a table of data representi ...
Entity Framework
... It is possible to use attributes on properties to specify constraints and keys To specify a primary key, the attribute [Key] can be used on the property. This is more specific and allows setting a primary key to another name than «tableId». To specify a foreign key, the attribute [ForeignKey] can ...
... It is possible to use attributes on properties to specify constraints and keys To specify a primary key, the attribute [Key] can be used on the property. This is more specific and allows setting a primary key to another name than «tableId». To specify a foreign key, the attribute [ForeignKey] can ...
Lab5
... Create a pgbuild directory to store PostgreSQL binaries and libraries once they have been built ...
... Create a pgbuild directory to store PostgreSQL binaries and libraries once they have been built ...
notes #15
... database: – setting a password for opening a database (system security); – user-level security, which can be used to limit the parts of the database that a user can read or update (data security). ...
... database: – setting a password for opening a database (system security); – user-level security, which can be used to limit the parts of the database that a user can read or update (data security). ...
Normalization
... Boyce-Codd Normal Form (BCNF) – A relation is in BCNF if every determinant is a candidate key “I swear to construct my tables so that all nonkey columns are dependent on the key, the whole key and nothing but the key, so help me Codd.” Kroenke, Database Processing ...
... Boyce-Codd Normal Form (BCNF) – A relation is in BCNF if every determinant is a candidate key “I swear to construct my tables so that all nonkey columns are dependent on the key, the whole key and nothing but the key, so help me Codd.” Kroenke, Database Processing ...
Extensible Markup Language (XML) is a simple, very flexible text
... In addition to using a database handle, you can also read and write data using a special mechanism called a cursor. Cursors are essentially iterators that you can use to walk over the records in a database. You can use cursors to iterate over a database from the first record to the last, and from th ...
... In addition to using a database handle, you can also read and write data using a special mechanism called a cursor. Cursors are essentially iterators that you can use to walk over the records in a database. You can use cursors to iterate over a database from the first record to the last, and from th ...
Improving Similarity Search in Face
... sets will soon be accumulated. Face-images browsing is based on the concept of similarity between face-images, i.e. searching face-images which are very similar or close to a given face. Each face-image is represented as a vector of numeric properties (features) extracted from the contend-based imag ...
... sets will soon be accumulated. Face-images browsing is based on the concept of similarity between face-images, i.e. searching face-images which are very similar or close to a given face. Each face-image is represented as a vector of numeric properties (features) extracted from the contend-based imag ...
An Efficient Method for Mining Association Rules with Item Constraints
... ones. This problem was introduced in [1]. Given a set of transactions, where each transaction is a set of items, an association rule is an expression X ⇒ Y, where X and Y are sets of item. An example of an association rule is: “25% of transactions that contain beer also contain diapers; 5% of all tr ...
... ones. This problem was introduced in [1]. Given a set of transactions, where each transaction is a set of items, an association rule is an expression X ⇒ Y, where X and Y are sets of item. An example of an association rule is: “25% of transactions that contain beer also contain diapers; 5% of all tr ...
Document
... • Consists of one or more attributes that determine other attributes • Primary key (PK) is an attribute (or a combination of attributes) that uniquely identifies any given entity (row) • Key’s role is based on determination – If you know the value of attribute A, you can look up (determine) the valu ...
... • Consists of one or more attributes that determine other attributes • Primary key (PK) is an attribute (or a combination of attributes) that uniquely identifies any given entity (row) • Key’s role is based on determination – If you know the value of attribute A, you can look up (determine) the valu ...
Achievements and Weaknesses of Object
... The OODB model has an OID that it is automatically generated by the system and that guarantees uniqueness to each object. This, in addition to eliminating the need for user defined keys in the OODB model, has brought other advantages to OODBs: 1) the OID cannot be modified by the application; 2) as ...
... The OODB model has an OID that it is automatically generated by the system and that guarantees uniqueness to each object. This, in addition to eliminating the need for user defined keys in the OODB model, has brought other advantages to OODBs: 1) the OID cannot be modified by the application; 2) as ...
PowerPoint Chapter 13_1
... • What online analytical processing (OLAP) is • How SQL extensions are used to support OLAP-type data manipulations ...
... • What online analytical processing (OLAP) is • How SQL extensions are used to support OLAP-type data manipulations ...
Document
... Only exclusive locks are allowed. The first lock by Ti may be on any data item. Subsequently, a data Q can be locked by Ti only if the parent of Q is currently locked by Ti. Data items may be unlocked at any time. A data item that has been locked and unlocked by Ti cannot subsequently be relocked by ...
... Only exclusive locks are allowed. The first lock by Ti may be on any data item. Subsequently, a data Q can be locked by Ti only if the parent of Q is currently locked by Ti. Data items may be unlocked at any time. A data item that has been locked and unlocked by Ti cannot subsequently be relocked by ...
cset3300-module-1 - The University of Toledo
... • You may not notice it, but databases are behind almost everything you do on the Web. ...
... • You may not notice it, but databases are behind almost everything you do on the Web. ...
Development of database complex for the CBM experiment
... Geometry database The Geometry Database is designed and implemented as a part of the CBM Databases project according to the User Requirements Document (URD) [Akishina, 2016].The CBM geometry describes the CBM setup on the detail level required for simulation of particles transport using GEANT [Agost ...
... Geometry database The Geometry Database is designed and implemented as a part of the CBM Databases project according to the User Requirements Document (URD) [Akishina, 2016].The CBM geometry describes the CBM setup on the detail level required for simulation of particles transport using GEANT [Agost ...
Protein Sequence Alignment and Database Searching
... Definition: A heuristic method is a method that uses “rules of thumb” to give an answer that, while it is not necessarily exact, is fast and is based on sound reasoning. When comparing two sequences, exact methods such as dynamic programming is possible. When comparing a sequence against a database, ...
... Definition: A heuristic method is a method that uses “rules of thumb” to give an answer that, while it is not necessarily exact, is fast and is based on sound reasoning. When comparing two sequences, exact methods such as dynamic programming is possible. When comparing a sequence against a database, ...
(Student#).
... Think about what you want to get back out of your database, not just about how to get data in Steal - see if it’s been done before ...
... Think about what you want to get back out of your database, not just about how to get data in Steal - see if it’s been done before ...