Database System (DBS)
... Microsoft offers SQL-Server, plus Microsoft Access for the cheap DBMS on the desktop, answered by “lite” systems from other competitors. Relational companies also challenged by “object-oriented DB” companies. But countered with “object-relational” systems, which retain the relational core while allo ...
... Microsoft offers SQL-Server, plus Microsoft Access for the cheap DBMS on the desktop, answered by “lite” systems from other competitors. Relational companies also challenged by “object-oriented DB” companies. But countered with “object-relational” systems, which retain the relational core while allo ...
SQL Server 2008 Complete Maintenance
... The REORGANIZE option is a fully online process that offers a best effort optimization process. If a page is in use, it will be skipped by the optimization process. This means that after this process is complete, the index might still have some fragmentation. There is some overhead incurred while th ...
... The REORGANIZE option is a fully online process that offers a best effort optimization process. If a page is in use, it will be skipped by the optimization process. This means that after this process is complete, the index might still have some fragmentation. There is some overhead incurred while th ...
Document
... Does not require any change in your applications. Any of your applications written using the default Read Committed isolation level automatically uses RCSI after making the change at the database level ...
... Does not require any change in your applications. Any of your applications written using the default Read Committed isolation level automatically uses RCSI after making the change at the database level ...
lesson3.7
... Data Encryption Standard (DES) substitutes characters and rearranges their order on the basis of an encryption key which is provided to authorized users via a secure mechanism. Scheme is no more secure than the key transmission mechanism since the key has to be shared. Advanced Encryption Standard ...
... Data Encryption Standard (DES) substitutes characters and rearranges their order on the basis of an encryption key which is provided to authorized users via a secure mechanism. Scheme is no more secure than the key transmission mechanism since the key has to be shared. Advanced Encryption Standard ...
comp4_unit6b_lecture_transcript
... There must be a way to selectively retrieve data from the database. Unique primary keys are used for this purpose as they will uniquely identify data. Primary key values should not change or should not change often because the data within tables will have to be re-associated with the new primary key ...
... There must be a way to selectively retrieve data from the database. Unique primary keys are used for this purpose as they will uniquely identify data. Primary key values should not change or should not change often because the data within tables will have to be re-associated with the new primary key ...
SQL Performance Tuning
... if inserting then v_var1 := :new.table_field; elsif updating then v_var1 := :new.table_field; v_var2 := :old.table_field; elsif deleting then v_va2 := :old.table_field; end if; end; ...
... if inserting then v_var1 := :new.table_field; elsif updating then v_var1 := :new.table_field; v_var2 := :old.table_field; elsif deleting then v_va2 := :old.table_field; end if; end; ...
HW#2
... Save it as query1 (or any name you like) If you only want a see few fields, QUERY2: Get the cityname and population in ascending order of the city Click on query Design Select CITY table Select the fields from drop down menu Select ascending from sort row and Execute the query using ! ...
... Save it as query1 (or any name you like) If you only want a see few fields, QUERY2: Get the cityname and population in ascending order of the city Click on query Design Select CITY table Select the fields from drop down menu Select ascending from sort row and Execute the query using ! ...
here
... Describe database tuning issues and list areas where changes can be done to tune the database Describe importance and measures of data quality Describe importance and measures of data availability ...
... Describe database tuning issues and list areas where changes can be done to tune the database Describe importance and measures of data quality Describe importance and measures of data availability ...
Transactions Seminar 2
... the first reading of shared data occurs in the first transaction. It can be done by means of a simple lock before the reading. Here this algorithm is possible, because we have just one reading and one writing immediately after it in both transactions, so the wait state will cause effective serial ex ...
... the first reading of shared data occurs in the first transaction. It can be done by means of a simple lock before the reading. Here this algorithm is possible, because we have just one reading and one writing immediately after it in both transactions, so the wait state will cause effective serial ex ...
Odata_access - Sheffield Hallam University
... Real world information systems are increasingly made up from a series of different technologies. Organisations may have both Mainframes and clientserver systems each with different databases and applications on them. There is often a need for the PC desktop to be the presenter of information. OLE DB ...
... Real world information systems are increasingly made up from a series of different technologies. Organisations may have both Mainframes and clientserver systems each with different databases and applications on them. There is often a need for the PC desktop to be the presenter of information. OLE DB ...
Oracle backup and recovery strategy - hep-proj
... Export writes object type definitions and all associated data to the dump file Import then re-creates these items from the dump file The definition statements for derived types are exported, same applies to OIDs ...
... Export writes object type definitions and all associated data to the dump file Import then re-creates these items from the dump file The definition statements for derived types are exported, same applies to OIDs ...
Microsoft® Office Access 2003 Training
... Tables are great for storing data. But to get the full benefit of Access, you need to understand other Access database objects. In this lesson, we'll tell you more about queries, forms, and reports, and how they can help you. A database window opens to show the list of database objects. ...
... Tables are great for storing data. But to get the full benefit of Access, you need to understand other Access database objects. In this lesson, we'll tell you more about queries, forms, and reports, and how they can help you. A database window opens to show the list of database objects. ...
Data Aware Components - Java Notes
... This section is written with the help of Mike Scordilis and Shamiel Dramat who has spent considerable effort developing notes and programs on Java Persistence. The previous method of accessing and updating a database with the DB class provided a way of working with the database using SQL statements. ...
... This section is written with the help of Mike Scordilis and Shamiel Dramat who has spent considerable effort developing notes and programs on Java Persistence. The previous method of accessing and updating a database with the DB class provided a way of working with the database using SQL statements. ...
Features of spatial databases
... objects in space, including points, lines and polygons. While typical databases can understand various numeric and character types of data, additional functionality needs to be added for databases to process spatial data types. These are typically called geometry or feature. The Open Geospatial Cons ...
... objects in space, including points, lines and polygons. While typical databases can understand various numeric and character types of data, additional functionality needs to be added for databases to process spatial data types. These are typically called geometry or feature. The Open Geospatial Cons ...
Information - Mpbse.nic.in
... 4. Create an application to Display Image files kept in different folders in the system. The application should allow the user to navigate in the folders and list all Image Files (*.BMP,*. JPG) when ever a image file is selected it should get that picture displayed in an Image control. 5. Create an ...
... 4. Create an application to Display Image files kept in different folders in the system. The application should allow the user to navigate in the folders and list all Image Files (*.BMP,*. JPG) when ever a image file is selected it should get that picture displayed in an Image control. 5. Create an ...
School of Computer Science - School of Computing and Information
... The Coverage of Knowledge Units within Computer Science Body of Knowledge1 Knowledge Unit Topic Lecture Hours IM1 Information storage & retrieval; capture & ...
... The Coverage of Knowledge Units within Computer Science Body of Knowledge1 Knowledge Unit Topic Lecture Hours IM1 Information storage & retrieval; capture & ...
Fundamentals of Database Systems - Monash University, Victoria
... – structured data is the not the only type stored Documents, images, sound, video Unstructured data or multimedia data – “…stored representations of objects and events that have meaning and importance in the users environment.” Multimedia environments store and display structured and unstructured da ...
... – structured data is the not the only type stored Documents, images, sound, video Unstructured data or multimedia data – “…stored representations of objects and events that have meaning and importance in the users environment.” Multimedia environments store and display structured and unstructured da ...
Data warehouse
... • Once data is of no value to the operational database it is transferred to the data warehouse • It may need some reformatting • Data is frequently deleted from the operational database • Once in the data warehouse it becomes a permanent addition – Hence the expression non-volatile Copyright © 2011 ...
... • Once data is of no value to the operational database it is transferred to the data warehouse • It may need some reformatting • Data is frequently deleted from the operational database • Once in the data warehouse it becomes a permanent addition – Hence the expression non-volatile Copyright © 2011 ...
ORACLE LECTURE SERIES
... Add another data file if not using AUTOEXTEND SQL > alter tablespace DATA add datafile '/u01/oracle/rbdb1/users02.dbf' size 20M; ...
... Add another data file if not using AUTOEXTEND SQL > alter tablespace DATA add datafile '/u01/oracle/rbdb1/users02.dbf' size 20M; ...
Principles of Database Systems
... at the “low end”: scramble to webspace (a mess!) at the “high end”: scientific applications ...
... at the “low end”: scramble to webspace (a mess!) at the “high end”: scientific applications ...
EIN 4905/ESI 6912 Decision Support Systems Excel
... If only one row or column field is given with a paired item name, then this method will return a grand or sub total value from the data field. ...
... If only one row or column field is given with a paired item name, then this method will return a grand or sub total value from the data field. ...