Intermediate SQL
... Example: If “Biology” is a department name appearing in one of the tuples in the instructor relation, then there exists a tuple in the department relation for “Biology”. ...
... Example: If “Biology” is a department name appearing in one of the tuples in the instructor relation, then there exists a tuple in the department relation for “Biology”. ...
Chapter 1: Introduction
... Forms of authorization to modify the database schema Index - allows creation and deletion of indices. Resources - allows creation of new relations. Alteration - allows addition or deletion of attributes in a relation. Drop - allows deletion of relations. ...
... Forms of authorization to modify the database schema Index - allows creation and deletion of indices. Resources - allows creation of new relations. Alteration - allows addition or deletion of attributes in a relation. Drop - allows deletion of relations. ...
Query Example
... Brooklyn at which they have accounts, and compare with total number of branches in Brooklyn QBE does not provide subquery functionality, so both above tasks have to be combined in a single query. Can be done for this query, but there are queries that require ...
... Brooklyn at which they have accounts, and compare with total number of branches in Brooklyn QBE does not provide subquery functionality, so both above tasks have to be combined in a single query. Can be done for this query, but there are queries that require ...
dl/i calls - Mainframes Online Training
... DB PCB - DEFINES PROGRAM’S VIEW OF A IMS DATABASE WHENEVER A DATABASE VIEW DEFINED BY THE PCB IS ACCESSED BY A CALL, THE RESULTS OF CALL ARE PASSED THROUGH THE PCB TO PROGRAM PSB IS GENERATED BY PSBGEN MACRO ...
... DB PCB - DEFINES PROGRAM’S VIEW OF A IMS DATABASE WHENEVER A DATABASE VIEW DEFINED BY THE PCB IS ACCESSED BY A CALL, THE RESULTS OF CALL ARE PASSED THROUGH THE PCB TO PROGRAM PSB IS GENERATED BY PSBGEN MACRO ...
CSC309 Tutorial: JDBC
... only compiled once, regardless of the number of times that they are used. ...
... only compiled once, regardless of the number of times that they are used. ...
Sedna: native XML database management system (internals overview)
... storage is efficient for retrieving an element containing subelements of different types, while schema-driven storage is efficient for retrieving only subelements of particular types instead of the whole element. Additionally, schema-driven storage is generally more computationally efficient for sel ...
... storage is efficient for retrieving an element containing subelements of different types, while schema-driven storage is efficient for retrieving only subelements of particular types instead of the whole element. Additionally, schema-driven storage is generally more computationally efficient for sel ...
mobile computing and databases - Lyle School of Engineering
... During integration, log applied. Conflicting updates are determined and user assists in resolution Timestamps at volume and object level used to determine conflicts. Trickle Reintegration used to asynchronously propagate updates. Hoard Profile - list of files and priorities. Lowest priority obj ...
... During integration, log applied. Conflicting updates are determined and user assists in resolution Timestamps at volume and object level used to determine conflicts. Trickle Reintegration used to asynchronously propagate updates. Hoard Profile - list of files and priorities. Lowest priority obj ...
An Oracle Instance
... A database server is the key to solving the problems of information management. In general, a server must reliably manage a large amount of data in a multiuser environment so that many users can concurrently access the same data. All this must be accomplished while delivering high performance. A dat ...
... A database server is the key to solving the problems of information management. In general, a server must reliably manage a large amount of data in a multiuser environment so that many users can concurrently access the same data. All this must be accomplished while delivering high performance. A dat ...
VI-Attached Database Storage - Purdue University :: Computer
... the application and VI. DSA deals with issues not supported in VI but are necessary for supporting storage I/O intensive applications and takes advantage of VI-specific features. It interacts with V3 storage nodes using a storage protocol that in addition to block-level read and write datapath opera ...
... the application and VI. DSA deals with issues not supported in VI but are necessary for supporting storage I/O intensive applications and takes advantage of VI-specific features. It interacts with V3 storage nodes using a storage protocol that in addition to block-level read and write datapath opera ...
Evolution Database Maintenance Guide
... server. You will still be able to take backup with those active users in the SQL server, however it is good to check with the active users and take the backup. ...
... server. You will still be able to take backup with those active users in the SQL server, however it is good to check with the active users and take the backup. ...
Automatic partitioning of database applications
... resources from numerous network round trips. A well-known technique to improve transactional database application performance is to convert part of the application into stored procedures that are executed on the database server. Unfortunately, this conversion is often difficult. In this paper we des ...
... resources from numerous network round trips. A well-known technique to improve transactional database application performance is to convert part of the application into stored procedures that are executed on the database server. Unfortunately, this conversion is often difficult. In this paper we des ...
Essential Database Maintenance Essential Database Maintenance
... Nothing is zeroed, removed, overwritten (“clear” is a misnomer) The log file size does NOT change (“truncation” is a misnomer) ...
... Nothing is zeroed, removed, overwritten (“clear” is a misnomer) The log file size does NOT change (“truncation” is a misnomer) ...
Transact-SQL Reference (Database Engine) | Microsoft Docs
... concepts such as tables. During this tutorial, you will create a database and create a Windows user. These tasks require a high level of permissions; therefore, you should log in to the computer as an administrator. Your system must have the following installed: Any edition of SQL Server. ...
... concepts such as tables. During this tutorial, you will create a database and create a Windows user. These tasks require a high level of permissions; therefore, you should log in to the computer as an administrator. Your system must have the following installed: Any edition of SQL Server. ...
R - CSE, IIT Bombay
... Materializing the above view would be very useful if the total salary by ...
... Materializing the above view would be very useful if the total salary by ...
Java Database Connectivity with JDBC
... Author’s ID number in the database. In the books database, this integer column is defined as autoincremented. For each row inserted in this table, the database automatically increments the authorID value to ensure that each row has a unique authorID. This column represents the table’s primary key. f ...
... Author’s ID number in the database. In the books database, this integer column is defined as autoincremented. For each row inserted in this table, the database automatically increments the authorID value to ensure that each row has a unique authorID. This column represents the table’s primary key. f ...
Chapter 22
... e.g., user may really only want documents about database systems, but the system may retrieve all documents that mention the phrase database systems”. Documents may be ordered by, for example, how many times the phrase appears in the document. ...
... e.g., user may really only want documents about database systems, but the system may retrieve all documents that mention the phrase database systems”. Documents may be ordered by, for example, how many times the phrase appears in the document. ...
SQL Data Types and Schemas Integrity Constraints Authorization
... Functions are particularly useful with specialized data types such as images and geometric objects Example: ...
... Functions are particularly useful with specialized data types such as images and geometric objects Example: ...
Chapter 1
... an overarching multitenant container database. A multitenant container database (CDB) is defined as a database capable of housing one or more pluggable databases. A container is defined as a collection of data files and metadata that exist within a CDB. A pluggable database is a special type of cont ...
... an overarching multitenant container database. A multitenant container database (CDB) is defined as a database capable of housing one or more pluggable databases. A container is defined as a collection of data files and metadata that exist within a CDB. A pluggable database is a special type of cont ...
Monitoring Oracle database with Verax NMS
... 2. Adding sensors for Oracle database ................................................................................... 7 3. Adding performance counters for Oracle database .......................................................... 9 4. Creating custom event processing rules for Oracle databa ...
... 2. Adding sensors for Oracle database ................................................................................... 7 3. Adding performance counters for Oracle database .......................................................... 9 4. Creating custom event processing rules for Oracle databa ...
JDBC Java Database Connectivity
... object that can be used to assemble and run SQL commands. The preparedStatement() creates an object that is associated with a predefined SQL command (the Statement object can be used for arbitrary statements – and can be reused for other SQL commands) – The getMetaData() method will return metadata ...
... object that can be used to assemble and run SQL commands. The preparedStatement() creates an object that is associated with a predefined SQL command (the Statement object can be used for arbitrary statements – and can be reused for other SQL commands) – The getMetaData() method will return metadata ...
PPT - UCLA Computer Science
... Can be more efficient when dealing with SQL statements that update a large number of rows ...
... Can be more efficient when dealing with SQL statements that update a large number of rows ...
MySQL
... Select Database to Use bool mysql_db_select(dbname, [dbconnection]) Always test and handle errors! Example: $dbs = mysql_db_select(‘dbmusic’) or die(‘Could not select db’); ...
... Select Database to Use bool mysql_db_select(dbname, [dbconnection]) Always test and handle errors! Example: $dbs = mysql_db_select(‘dbmusic’) or die(‘Could not select db’); ...
A Generic Provenance Middleware for Database Queries, Updates
... as an umbrella term for DML operations) is relatively well understood [2, 5, 15, 17], no comprehensive implementation exists. Furthermore, no solution for tracking transactions has been proposed so far. • Systems are inflexible in their support for deciding when to compute provenance, when to store ...
... as an umbrella term for DML operations) is relatively well understood [2, 5, 15, 17], no comprehensive implementation exists. Furthermore, no solution for tracking transactions has been proposed so far. • Systems are inflexible in their support for deciding when to compute provenance, when to store ...
Asynchronous Database Access with Qt 4.x
... utilize its database connection according to the rules that are laid out in the beginning of this article. Finally, any signals coming from the worker are “forwarded” back out through the QueryThread interface—another convenience for the users of QueryThread, which also serves to hide all the detail ...
... utilize its database connection according to the rules that are laid out in the beginning of this article. Finally, any signals coming from the worker are “forwarded” back out through the QueryThread interface—another convenience for the users of QueryThread, which also serves to hide all the detail ...