ppt - CSE, IIT Bombay
... (select customer-name,account-number from depositor, inserted where inserted.account-number = depositor.account-number) insert into loan values (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account.account-number = ins ...
... (select customer-name,account-number from depositor, inserted where inserted.account-number = depositor.account-number) insert into loan values (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account.account-number = ins ...
JDBC Java Database Connectivity
... – This fully implemented class connects an application to a data source, which is specified by a database URL. – When this class first attempts to establish a connection, it automatically loads any JDBC 4.0 drivers found within the class path. Note that your application must manually load any JDBC d ...
... – This fully implemented class connects an application to a data source, which is specified by a database URL. – When this class first attempts to establish a connection, it automatically loads any JDBC 4.0 drivers found within the class path. Note that your application must manually load any JDBC d ...
Oracle 9i Data Guard - Technical White Paper
... standby database, or a logical standby database. A physical standby database has ondisk database structures that are identical to the primary database on a block-byblock basis. A logical standby database is an independent database that contains the same data as the primary database. It is updated us ...
... standby database, or a logical standby database. A physical standby database has ondisk database structures that are identical to the primary database on a block-byblock basis. A logical standby database is an independent database that contains the same data as the primary database. It is updated us ...
Data Guard Basics
... No interconnect network required between sites No storage network required between sites RAC licences not required if each site is a single-instance ...
... No interconnect network required between sites No storage network required between sites RAC licences not required if each site is a single-instance ...
Design and Implementation of a Document Database Extension
... within a document assigning (parallel and serial) tasks to different users. [17] describes the real-time propagation of updates within a system where multiple clients are working on the same document. In [11] the TeNDaX Meta Data System is presented. As all data is stored in the database, various ty ...
... within a document assigning (parallel and serial) tasks to different users. [17] describes the real-time propagation of updates within a system where multiple clients are working on the same document. In [11] the TeNDaX Meta Data System is presented. As all data is stored in the database, various ty ...
Ch3: Database Modeling Building Blocks
... field in a table. A field applies structure and definition to a chunk of data within each repeated record. Whereas fields apply structure to records, datatypes apply structure and restrictions to fields and values in those fields. ...
... field in a table. A field applies structure and definition to a chunk of data within each repeated record. Whereas fields apply structure to records, datatypes apply structure and restrictions to fields and values in those fields. ...
Presentation Guidelines
... • Founder and President of Oracle BIWA SIG • Awarded IOUG – Oracle Contribution Award 2007 for success of BIWA SIG • Currently Senior Oracle Developer at Citco • Experience of development in Finance/Banking, Telecomm, Healthcare etc ...
... • Founder and President of Oracle BIWA SIG • Awarded IOUG – Oracle Contribution Award 2007 for success of BIWA SIG • Currently Senior Oracle Developer at Citco • Experience of development in Finance/Banking, Telecomm, Healthcare etc ...
pptx
... ◦ Rewriting of a SPARQL query to an SQL one ◦ SQL results transformed back to SPARQL results ◦ Aka. query-driven access ...
... ◦ Rewriting of a SPARQL query to an SQL one ◦ SQL results transformed back to SPARQL results ◦ Aka. query-driven access ...
Introduction to Database Systems
... Cursor Operations: Fetching results • Use the mysql_fetch_array() function to return the first row from the recordset as an array. • Each call to mysql_fetch_array() returns the next row in the recordset. • The while loop loops through all the records in the recordset. • To refer to the value of “m ...
... Cursor Operations: Fetching results • Use the mysql_fetch_array() function to return the first row from the recordset as an array. • Each call to mysql_fetch_array() returns the next row in the recordset. • The while loop loops through all the records in the recordset. • To refer to the value of “m ...
Tokyo Products
... • full-text search engine – manages databases of Tokyo Cabinet as an inverted index ...
... • full-text search engine – manages databases of Tokyo Cabinet as an inverted index ...
Document
... • Schema = a description of the structure of an entire database, used by database software to maintain the database • Subschema = a description of only that portion of the database pertinent to a particular user’s needs, used to prevent sensitive data from being accessed by unauthorized personnel ...
... • Schema = a description of the structure of an entire database, used by database software to maintain the database • Subschema = a description of only that portion of the database pertinent to a particular user’s needs, used to prevent sensitive data from being accessed by unauthorized personnel ...
Migrating to Azure SQL Database Tips, Tricks and Lessons Learned
... “SSDT uses the most recent compatibility rules to detect SQL Database V12 incompatibilities. If incompatibilities are detected, you can fix detected issues directly in this tool. This is currently the recommended method to test and fix SQL Database V12 ...
... “SSDT uses the most recent compatibility rules to detect SQL Database V12 incompatibilities. If incompatibilities are detected, you can fix detected issues directly in this tool. This is currently the recommended method to test and fix SQL Database V12 ...
Role
... Each user is assigned a profile that specifies limitations on several system resources available to the user, including the following: – Number of concurrent sessions the user can establish, – CPU processing time available for the user’s session and a single call to Oracle made by a SQL statement, – ...
... Each user is assigned a profile that specifies limitations on several system resources available to the user, including the following: – Number of concurrent sessions the user can establish, – CPU processing time available for the user’s session and a single call to Oracle made by a SQL statement, – ...
XML Presentation ()
... Queries are eventually reformulated into queries over the structured resources (e.g. SQL) Only results need to be materialized ...
... Queries are eventually reformulated into queries over the structured resources (e.g. SQL) Only results need to be materialized ...
ppt - Avi Silberschatz
... (select customer-name,account-number from depositor, inserted where inserted.account-number = depositor.account-number) insert into loan values (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account.account-number = ins ...
... (select customer-name,account-number from depositor, inserted where inserted.account-number = depositor.account-number) insert into loan values (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account.account-number = ins ...
CH06
... (See Fig. 6.16) The problem is solved in SQL by the notion of a “transaction.” Serializability: These transactions must behave as if they were run serially – one at a time, with no overlap. Database Systems ...
... (See Fig. 6.16) The problem is solved in SQL by the notion of a “transaction.” Serializability: These transactions must behave as if they were run serially – one at a time, with no overlap. Database Systems ...
Chapter 01 Review Questions (Word)
... An index can be used to improve the performance of the database. Answer: True Level: hard Page: 9 ...
... An index can be used to improve the performance of the database. Answer: True Level: hard Page: 9 ...
Document
... Projection is a more difficult operation l R = (A,B), and r(R) = { (a,2), (a,3)} l A(r) has a single tuple (a). l If we delete the tuple (a,2) from r, we should not delete the tuple (a) from A(r), but if we then delete (a,3) as well, we should delete the tuple n For each tuple in a projection A(r ...
... Projection is a more difficult operation l R = (A,B), and r(R) = { (a,2), (a,3)} l A(r) has a single tuple (a). l If we delete the tuple (a,2) from r, we should not delete the tuple (a) from A(r), but if we then delete (a,3) as well, we should delete the tuple n For each tuple in a projection A(r ...
Document
... large instant-access applications. ■ Instant access is made possible by databases. – Individual database records can be accessed directly without sequentially searching. – Databases have been used in business applications for decades. ...
... large instant-access applications. ■ Instant access is made possible by databases. – Individual database records can be accessed directly without sequentially searching. – Databases have been used in business applications for decades. ...
Semantic Conflicts Reconciliation as a Viable Solution for Semantic
... Global Data Standardization (GS) If we could develop and maintain a single data standard that defines a set of concepts and specifies the corresponding representation, all semantic differences would disappear and there would be no need for data conversion. Unfortunately, such standardization is usua ...
... Global Data Standardization (GS) If we could develop and maintain a single data standard that defines a set of concepts and specifies the corresponding representation, all semantic differences would disappear and there would be no need for data conversion. Unfortunately, such standardization is usua ...
Institutionen för datavetenskap Storing and structuring big data with business Fredrik Andersson
... In a database system the hard disk is a bottleneck when considering the performance aspect. The main memory in a computer is in contrast to the hard disk a smaller but much faster memory, in reads and writes. The hard disk can be fifteen times slower than the memory bus which is a channel between th ...
... In a database system the hard disk is a bottleneck when considering the performance aspect. The main memory in a computer is in contrast to the hard disk a smaller but much faster memory, in reads and writes. The hard disk can be fifteen times slower than the memory bus which is a channel between th ...
P*TIME
... architectural approach to logging. Based on the finegrained differential logging of updates, P*TIME first minimizes log volume for maximal utilization of CPU processing power and memory and IO bandwidth. Dynamic selection of field-level or record-level logging represents the degree of P*TIME optimi ...
... architectural approach to logging. Based on the finegrained differential logging of updates, P*TIME first minimizes log volume for maximal utilization of CPU processing power and memory and IO bandwidth. Dynamic selection of field-level or record-level logging represents the degree of P*TIME optimi ...
Connection con = DriverManager.getConnection( url, user, pass )
... You must close these three items, in the reverse order that you opened them! ...
... You must close these three items, in the reverse order that you opened them! ...
Parallel Databases
... Factors Limiting Speedup and Scaleup Speedup and scaleup are often sublinear due to: Startup costs: Cost of starting up multiple processes may dominate computation time, if the degree of parallelism is high. ...
... Factors Limiting Speedup and Scaleup Speedup and scaleup are often sublinear due to: Startup costs: Cost of starting up multiple processes may dominate computation time, if the degree of parallelism is high. ...