Zvi`s changes, if any, are marked in green, they are not copyrighted
... holds on R if and only if for any legal relations r(R), whenever any two tuples t1 and t2 of r agree on the attributes a, they also agree on the attributes b. That is, t1[a] = t2 [a] t1[b ] = t2 [b ] Example: Consider r(A,B) with the following instance of r. ...
... holds on R if and only if for any legal relations r(R), whenever any two tuples t1 and t2 of r agree on the attributes a, they also agree on the attributes b. That is, t1[a] = t2 [a] t1[b ] = t2 [b ] Example: Consider r(A,B) with the following instance of r. ...
BE 11d Press Presentatin
... New Agent for Oracle R/MAN (Windows & Linux) Full Oracle R/MAN Support Oracle 9i & 10g Support R/MAN interfaces - streamlined syntax Configurable Multi-streaming via R/MAN Automatic backup of control files Single step ControlFile & Database restore Enhancement to include archived redo bac ...
... New Agent for Oracle R/MAN (Windows & Linux) Full Oracle R/MAN Support Oracle 9i & 10g Support R/MAN interfaces - streamlined syntax Configurable Multi-streaming via R/MAN Automatic backup of control files Single step ControlFile & Database restore Enhancement to include archived redo bac ...
Database Disaster Recovery and More
... SQL> shutdown immediate SQL> exit $ ls -ltr /u00/oracle/admin/PROD/udump/* | tail -1 | sed 's/^.* \//\//' >>backemup.dat Get the SID-based file list with archivelogs at end of list: $ find / -name '*PROD*' ! -type d 2>/dev/null | grep -v 'arc$' | grep -v 'gz$' >>backemup.dat $ ls /u01/oradata/PROD/a ...
... SQL> shutdown immediate SQL> exit $ ls -ltr /u00/oracle/admin/PROD/udump/* | tail -1 | sed 's/^.* \//\//' >>backemup.dat Get the SID-based file list with archivelogs at end of list: $ find / -name '*PROD*' ! -type d 2>/dev/null | grep -v 'arc$' | grep -v 'gz$' >>backemup.dat $ ls /u01/oradata/PROD/a ...
Oracle Database 10g
... of rows and columns, as shown in Figure 1-2. Unlike the hierarchical approach, no predetermined relationship exists between distinct tables. This means that the data needed to link together the different areas of the network or hierarchical model need not be defined. Because relational users don’t n ...
... of rows and columns, as shown in Figure 1-2. Unlike the hierarchical approach, no predetermined relationship exists between distinct tables. This means that the data needed to link together the different areas of the network or hierarchical model need not be defined. Because relational users don’t n ...
SQL Statements
... The PI Interface makes internal use of the PI-API-NT in order to keep a standard way of interfacing from a client node to the PI Server Node. This version of the Interface only supports one ODBC connection per running copy (but it is possible to use multiple instances of this connection). SQL statem ...
... The PI Interface makes internal use of the PI-API-NT in order to keep a standard way of interfacing from a client node to the PI Server Node. This version of the Interface only supports one ODBC connection per running copy (but it is possible to use multiple instances of this connection). SQL statem ...
Kroenke-Auer-DBP-e13-PPT
... developed for accessing database servers. • Some of the important standards: – ODBC (Open Database Connectivity) is the early standard for relational databases. – OLE DB is Microsoft’s older object-oriented interface for relational and other databases. – The .NET Framework and ADO.NET are the curren ...
... developed for accessing database servers. • Some of the important standards: – ODBC (Open Database Connectivity) is the early standard for relational databases. – OLE DB is Microsoft’s older object-oriented interface for relational and other databases. – The .NET Framework and ADO.NET are the curren ...
Firebird 3.0.2 Release Notes
... GRANT EXECUTE Privileges for UDFs .............................................................................. Improvement for Recursive Stored Procedures ....................................................................... Privileges to Protect Other Metadata Objects .......................... ...
... GRANT EXECUTE Privileges for UDFs .............................................................................. Improvement for Recursive Stored Procedures ....................................................................... Privileges to Protect Other Metadata Objects .......................... ...
File - You have to dream before your dreams can come
... Benefits of PL/SQL • Procedural language support : PL/SQL is a development tools not only for data manipulation futures but also provide the conditional checking, looping or branching operations same as like other programming language. • Reduces network traffic : This one is great advantages of PL/ ...
... Benefits of PL/SQL • Procedural language support : PL/SQL is a development tools not only for data manipulation futures but also provide the conditional checking, looping or branching operations same as like other programming language. • Reduces network traffic : This one is great advantages of PL/ ...
FileMaker ODBC and JDBC Guide
... Executing SQL to interact with data sources via ODBC In addition to importing data into a FileMaker Pro database file via ODBC, you can also interact with data sources using SQL statements through the Execute SQL script step and the ExecuteSQL function. You can use any SQL statement supported by the ...
... Executing SQL to interact with data sources via ODBC In addition to importing data into a FileMaker Pro database file via ODBC, you can also interact with data sources using SQL statements through the Execute SQL script step and the ExecuteSQL function. You can use any SQL statement supported by the ...
DB2 UDB for z/OS V8: S V8: Through the Looking Glass
... 4.1.1 Sparse index in outside-in join phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 4.1.2 In-memory workfiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 4.1.3 Sparse index during inside-out join phase . . . . . . . ...
... 4.1.1 Sparse index in outside-in join phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 4.1.2 In-memory workfiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 4.1.3 Sparse index during inside-out join phase . . . . . . . ...
P3_RLarsen - Stanford University
... Clone a set of records: Create a new set of n new records with unique record IDs. Assign keywords, links, and segments their values from the record set given as input. If mode = DRMS_SHARE_SEGMENTS the clones inherit their data segments, which cannot be modified, from their parent. If mode=DRMS_COPY ...
... Clone a set of records: Create a new set of n new records with unique record IDs. Assign keywords, links, and segments their values from the record set given as input. If mode = DRMS_SHARE_SEGMENTS the clones inherit their data segments, which cannot be modified, from their parent. If mode=DRMS_COPY ...
Word - tpc.org
... The performance metric reported by TPC-D is called the TPC-D Composite Query-per-Hour Performance Metric (QphD@Size), and reflects multiple aspects of the capability of the system to process queries. These aspects include the selected database size against which the queries are executed, the query p ...
... The performance metric reported by TPC-D is called the TPC-D Composite Query-per-Hour Performance Metric (QphD@Size), and reflects multiple aspects of the capability of the system to process queries. These aspects include the selected database size against which the queries are executed, the query p ...
API Gateway Key Property Store User Guide
... l Data can change while API Gateways are running. Updating Cassandra-backed or databasebacked KPS tables does not require an API Gateway restart. Changeable data should therefore be stored in KPS instead of hard-coded into p olicies. l Queries always involve looking up a key value in a ...
... l Data can change while API Gateways are running. Updating Cassandra-backed or databasebacked KPS tables does not require an API Gateway restart. Changeable data should therefore be stored in KPS instead of hard-coded into p olicies. l Queries always involve looking up a key value in a ...
H14621: Microsoft SQL Server Best Practices and Design
... with other enterprise applications that expect a more cooperative multi-tasking environment. SQLOS is further discussed in the next section. Microsoft also focused on the development of Business Intelligence functionality for the 2000 release including Data Transformation Services, the first SQL Ser ...
... with other enterprise applications that expect a more cooperative multi-tasking environment. SQLOS is further discussed in the next section. Microsoft also focused on the development of Business Intelligence functionality for the 2000 release including Data Transformation Services, the first SQL Ser ...
Document
... entity sets becomes a super key of the relation. For binary many-to-one relationship sets, the primary key of the “many” entity set becomes the relation’s primary key. For one-to-one relationship sets, the relation’s primary key can be that of either entity set. For many-to-many relationship s ...
... entity sets becomes a super key of the relation. For binary many-to-one relationship sets, the primary key of the “many” entity set becomes the relation’s primary key. For one-to-one relationship sets, the relation’s primary key can be that of either entity set. For many-to-many relationship s ...
SQL Server 2012 T-SQL Recipes: A Problem
... Please remember that, as good practice, it is better to reference the columns you want to retrieve explicitly instead of using SELECT *. If you write an application that uses SELECT *, your application may expect the same columns (in the same order) from the query. If later on you add a new column t ...
... Please remember that, as good practice, it is better to reference the columns you want to retrieve explicitly instead of using SELECT *. If you write an application that uses SELECT *, your application may expect the same columns (in the same order) from the query. If later on you add a new column t ...
2. Quality metrics for SQL queries embedded in host languages - Huib J. van den Brink, Rob C. van der Leek
... of the host language, as with for instance COBOL. For the string concatenation case, when queries are constructed out of strings, many constructs have to be taken into account. The issues to be addressed when gathering queries in these situations, is the great freedom of expression. The ways the que ...
... of the host language, as with for instance COBOL. For the string concatenation case, when queries are constructed out of strings, many constructs have to be taken into account. The issues to be addressed when gathering queries in these situations, is the great freedom of expression. The ways the que ...
The Implementation and Performance Evaluation of the ADMS Query Optimizer: Integrating
... a bounded cache space environment. The purpose here, however, is not to compare amongst the di erent replacement strategies, but rather observe the performance change of CMO under di erent available cache spaces, though the results might shed a light into the choice of proper replacement strategy un ...
... a bounded cache space environment. The purpose here, however, is not to compare amongst the di erent replacement strategies, but rather observe the performance change of CMO under di erent available cache spaces, though the results might shed a light into the choice of proper replacement strategy un ...
ACT! Diagnostics User`s Guide
... By default, the Act! database you access most is enabled to warm up or get partially “pre-loaded” into memory. This is set to occur upon startup of the SQL Server database engine. This feature allows the initial logon to that database to be faster. To use database warmup, a database must reside on t ...
... By default, the Act! database you access most is enabled to warm up or get partially “pre-loaded” into memory. This is set to occur upon startup of the SQL Server database engine. This feature allows the initial logon to that database to be faster. To use database warmup, a database must reside on t ...
Storing XML using Relational Model
... Store the entire document as text, such as a binary large object (BLOB) into the relational database. This strategy is appropriate for document centric data. All leading RDBMS vendors support this method (Microsoft SQL Server, Oracle Oracle8i, IBM DB2). This method is simple but it does not al ...
... Store the entire document as text, such as a binary large object (BLOB) into the relational database. This strategy is appropriate for document centric data. All leading RDBMS vendors support this method (Microsoft SQL Server, Oracle Oracle8i, IBM DB2). This method is simple but it does not al ...
SQL Tutorial - TutorialsPoint
... We strive to update the contents of our website and tutorials as timely and as precisely as possible, however, the contents may contain inaccuracies or errors. Tutorials Point (I) Pvt. Ltd. provides no guarantee regarding the accuracy, timeliness or completeness of our website or its contents includ ...
... We strive to update the contents of our website and tutorials as timely and as precisely as possible, however, the contents may contain inaccuracies or errors. Tutorials Point (I) Pvt. Ltd. provides no guarantee regarding the accuracy, timeliness or completeness of our website or its contents includ ...
comlab.ox.ac.uk - Department of Computer Science, Oxford
... The main contributions of this paper are as follows: • We define a data safe query plan, which is a query plan P that can be evaluated using extensional semantics on a database instance D; in contrast, the standard definition of a safe plan is one where the extensional semantics is correct on any in ...
... The main contributions of this paper are as follows: • We define a data safe query plan, which is a query plan P that can be evaluated using extensional semantics on a database instance D; in contrast, the standard definition of a safe plan is one where the extensional semantics is correct on any in ...
