Database Design
... • Business Time (aka application time or valid time) – Specifies when the facts stored in the database are true with respect to the real world. – These are the dates of interest to the business user interacting with the data. – Business time is useful for only certain types of data that change over ...
... • Business Time (aka application time or valid time) – Specifies when the facts stored in the database are true with respect to the real world. – These are the dates of interest to the business user interacting with the data. – Business time is useful for only certain types of data that change over ...
Connecting to MySQL using Java
... An Update statement is used to modify the database in some way. Update is a simple process, the function returns an integer of the number of columns returned, or -1 if the update failed. ...
... An Update statement is used to modify the database in some way. Update is a simple process, the function returns an integer of the number of columns returned, or -1 if the update failed. ...
A brief history of computing databases
... you wanted to find one person, you had to know where they lived. When was the first US census? ...
... you wanted to find one person, you had to know where they lived. When was the first US census? ...
Lab Final Study Guide
... o Also, you must be able to write/use an EXEC command or a SELECT command to use the function, stored procedure or trigger. Backup your database and transaction log files. (RESTORE will not be required.) Create and save an index on a field or on multiple fields in a table. ...
... o Also, you must be able to write/use an EXEC command or a SELECT command to use the function, stored procedure or trigger. Backup your database and transaction log files. (RESTORE will not be required.) Create and save an index on a field or on multiple fields in a table. ...
1 What is ...? 2 Features of Modern Database and TP Systems 3
... What is database? A collection of data items related to some enterprise stored on some storage media. (our interest: stored on computer); Database can either be centralized or distributed. Database Management System (DBMS) databases. ...
... What is database? A collection of data items related to some enterprise stored on some storage media. (our interest: stored on computer); Database can either be centralized or distributed. Database Management System (DBMS) databases. ...
CIS 338: Using Data Access Objects
... Using Indexes indexes control sort order different indexes for different sorts indexes must be created before recordset can only use indexes with table recordsets, not dynasets or snapshots rs[name].Index = "[name of index]" 'existing index 'creating a new index (MSDN site) ...
... Using Indexes indexes control sort order different indexes for different sorts indexes must be created before recordset can only use indexes with table recordsets, not dynasets or snapshots rs[name].Index = "[name of index]" 'existing index 'creating a new index (MSDN site) ...
Case Study V: Help Desk Service
... – Consider the existence and types of indexes on the tables. – Estimate the number of index blocks accessed. – Estimate the number of data pages accessed. ...
... – Consider the existence and types of indexes on the tables. – Estimate the number of index blocks accessed. – Estimate the number of data pages accessed. ...
Data Dependence An application program that deals with data
... normally mean structural changes of any kind—we assume application programs are immune to mere changes in the data content of the external source, such as addition and deletion of records and updates made to existing records. Data independence, insofar as it is achievable, requires not only features ...
... normally mean structural changes of any kind—we assume application programs are immune to mere changes in the data content of the external source, such as addition and deletion of records and updates made to existing records. Data independence, insofar as it is achievable, requires not only features ...
DBMS Functions Data, Storage, Retrieval, and Update
... – Avoids the need to lock rows and eliminates the processing time needed to apply and release locks; also detects and resolves deadlocks. ...
... – Avoids the need to lock rows and eliminates the processing time needed to apply and release locks; also detects and resolves deadlocks. ...
Elements of SQL Data Definition Language
... Define Tables (Conceptual Level) Define Views (User Level) Extensions may define storage Define Indexes Grant Permissions Add Column to table Drop tables, views, indexes ...
... Define Tables (Conceptual Level) Define Views (User Level) Extensions may define storage Define Indexes Grant Permissions Add Column to table Drop tables, views, indexes ...
Problem Solving
... field that is computed on creation and kept up to date as the database is updated • By using the index, the database software is able to quickly retrieve the record given the field value ...
... field that is computed on creation and kept up to date as the database is updated • By using the index, the database software is able to quickly retrieve the record given the field value ...
Application Software Practical 1
... Relational Database Management System (RDBMS) – software that uses related data stored in different tables Table is made up of rows (records) and columns (fields) ...
... Relational Database Management System (RDBMS) – software that uses related data stored in different tables Table is made up of rows (records) and columns (fields) ...
In The Data – Keeping it going - Wiki
... detail) a ticket number or line item NID must be provided (respectively) to identify which rows are update candidates. These can be provided as comma separated values, or by providing a SQL script that gathers the ...
... detail) a ticket number or line item NID must be provided (respectively) to identify which rows are update candidates. These can be provided as comma separated values, or by providing a SQL script that gathers the ...
Creating Indexes
... • Create a non-unique index. • Remove an index from the data dictionary. • Evaluate guidelines for creating and using indexes. ...
... • Create a non-unique index. • Remove an index from the data dictionary. • Evaluate guidelines for creating and using indexes. ...
Chapter 1
... 3. A relational database consists of one or more __________________. 4. A/An _______________________ uniquely identifies each row in a table. 5. The intersection of a row and a column is commonly called a/an ____________________. 6. To relate one table to another, a/an _______________________ in one ...
... 3. A relational database consists of one or more __________________. 4. A/An _______________________ uniquely identifies each row in a table. 5. The intersection of a row and a column is commonly called a/an ____________________. 6. To relate one table to another, a/an _______________________ in one ...
DataBlitz: A High Performance Main-Memory Storage Manager
... from that of commercially available database management systems as it is optimized for high performance in the case when sufficient main-memory is available to hold the entire database. Our benchmark results indicate that DataBlitz can deliver as high as 50 times the performance of commercial disk-b ...
... from that of commercially available database management systems as it is optimized for high performance in the case when sufficient main-memory is available to hold the entire database. Our benchmark results indicate that DataBlitz can deliver as high as 50 times the performance of commercial disk-b ...
Record Locking
... ODBC and Access Record Locking When you edit data in a linked SQL database table using ODBC, Microsoft Access doesn't lock records; instead, the rules of that SQL database govern locking. In this instance, regardless of the record-locking setting you choose for your database, Microsoft Access alway ...
... ODBC and Access Record Locking When you edit data in a linked SQL database table using ODBC, Microsoft Access doesn't lock records; instead, the rules of that SQL database govern locking. In this instance, regardless of the record-locking setting you choose for your database, Microsoft Access alway ...
Access Databases
... Table Design Basics Include necessary data Store data in smallest parts Do not use calculated fields ...
... Table Design Basics Include necessary data Store data in smallest parts Do not use calculated fields ...
TARGIT - Setting up Dynamic Periods with Jet Enterprise
... Log in to Targit Management and create a new connection: Other – Auxiliary Relational Database ...
... Log in to Targit Management and create a new connection: Other – Auxiliary Relational Database ...
Document
... What this process handles Job continues if one index fails Handles Read only database Post troubleshooting logs Can be scheduled daily Minimize system downtime due to log disk full • Automated log backups • Network backups ...
... What this process handles Job continues if one index fails Handles Read only database Post troubleshooting logs Can be scheduled daily Minimize system downtime due to log disk full • Automated log backups • Network backups ...