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Database Programming
Databases are collections of tables that maintain and display information, often collaboratively; this information can be used for interaction with an application or gaining general knowledge. Questions about database engines and modifying or using them belong in this category.
8,803 Questions
How do you type a paper if you don't have Microsoft Word?
There is Notepad and Wordpad that come on your computer. Microsoft Word has clip art and special things, but you can type a regualr document on wordpad. Wordpad is more like Word than Notepad.
Like it's name, Notepad is really just for taking notes. People who make websites can use notepad to write their websites.
Explain the characterstics of management information systems?
Management information systems feature hardware and software that work to make the organization productive. The management information system chosen by the organization is critical to the success of the firm.
What are the advantages of data warehousing?
Advantages of data warehousing
- One consistent data store for reporting, forecasting, and analysis
- Easier and timely access to data
- Improved end-user productivity
- Improved IS productivity
- Reduced costs
- Scalability
- Flexibility
- Reliability
- Competitive advantage
- Trend analysis and detection
- Key ratio indicator measurement and tracking
- Drill down analysis
- Problem monitoring
- Executive analysis.
The following commonly used operations are fuzzy for built-in data types:
- Inserts
- Updates
- Deletes
The following operations are nonfuzzy:
- Inserts, updates, and deletes for rows that contain user-defined data types, smart large objects (CLOB and BLOB data types), or simple large objects (TEXT and Byte data types)
- Table alters and loads
- Operations that create or modify indexes (B-tree, R-tree, or user-defined indexes)
The database server flushes all the modified data pages for nonfuzzy operations to disk during a fuzzy checkpoint in the same way as for a full checkpoint.
Important:
Fuzzy checkpoints are disabled for the primary and secondary servers in a High-Availability Data Replication pair.
Write-Ahead Logging and Fast RecoveryFuzzy checkpoint uses write-ahead logging for fast recovery. Write-ahead logging means that the logical-log records representing changes to fuzzy data must be on disk before the changed data replaces the previous version of the data on disk. Fast recovery begins with the oldest update not yet flushed to disk rather than with the previous checkpoint.
Fuzzy checkpoints result in slightly longer roll-forward fast-recovery times. The database server occasionally performs a full checkpoint to prevent loss of old logical-log records.
Fuzzy Checkpoints Improve PerformanceFuzzy checkpoints are much faster than full checkpoints and improve transaction throughput. Because the database server does not log fuzzy operations in the physical log, the physical log does not fill as quickly, and checkpoints occur less often. For example, if you are inserting and updating a lot of data, checkpoints occur less frequently and are shorter.
The database server skips a full checkpoint if all data is physically consistent when the checkpoint interval expires. It skips a fuzzy checkpoint only if no pages have been dirtied since the last checkpoint.
To improve transaction throughput, use the BUFFERPOOL configuration parameter to increase thelru_max_dirty and lru_max_dirty values. However, do not change the gap between the lru_max_dirty andlru_max_dirty values.
What is a good product for database security?
LTS Secure Intelligence Driven SOC is integrated Context-aware Security protection platforms that provides and integrate prediction, prevention, detection and response capabilities by leveraging adaptive security framework. LTS Secure comprehensive SOC provides continuous monitoring for all layers of the IT stack: network packets, flows, OS activities, content, Identities, user behaviors and application transactions for protection from advanced threats using integrated Adaptive Security framework.
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The primary key.
What are the advantages of database management system?
management is a system of authority. infact management won't exist without proper and appropriate authority.Authority is power to get the work done by others and compel them to work systematically.Management cannot perform in absence of authority.Authority and responsibility generally depends upon the position of the managers ( viz. general manager , sales manager , departmental manager , finanace manager ) in the organization.
What security measures should you implement on your website to ensure customers data is protected?
One way to tell whether a website offers security to help protect your sensitive data is if they have a security certificate for the site matches the name of the site.
What is difference between Excel and RDBMS?
Excel is a spreadsheet application. RDBMS is a Relational Database Management System. Excel has databasing capabilities, but does not have the capabilities of a relational database. There are many facilities in a RDBMS that Excel cannot do or can only do to a very limited amount. Excel is for numerical analysis and manipulation, which is what a spreadsheet is for. Databases are for managing lists of data. So while they both can manipulate data, they are for different kinds of jobs.
What is a stand-alone database system?
A computer that is not part of any network, typically Local Area Network, is considered stand-alone computer. Please note that, depending on the situation, a computer that is not part of LAN, but has access to the internet may or may not be conisdered a stand-alone. The term stand-alone is usually by computer security people. A computer that is not part of LAN is usually configured in such a way that all unnecessary ports/services that can allow access to the computer are blocked in order to secure it.
Which tags are used to add rows to your tables?
Inset Into your_table ( fileld1, field2,.....,fieldn) values (value1,value2,.....,value n)
What are the four main functions of a computer?
1.) Input - Information you put into the computer by way of keyboard, mouse, or stylus. 2.) Processing (CPU) - Also known as the "Brain" of the computer. Processes the information you put in into human readable form. A.) There are 3 C's of processing. 1.) Calculate - Addition, Subtraction, Multiplication, and Division 2.) Copy - happens many times with each instruction that is processed, between registers in the CPU, Devices in the system, and different addresses in the memory. 3.) Comparing - Everytime data is copied, the original data set must be compared to the new data set and when data is being sorted, values in the database compared to the sort string. When datasets are being searched, the database must be compared to the search stream. 3.) Output - The information you put into the computer is seen on the monitor screen and can be printes out on paper and is readable. 4.) Storage - Either the computers memory, CD's, DVD's, Floppy Disc's, USB Flash Drives, ZIp DIsc's, etc.
What is the difference between Oracle and Microsoft Access?
Microsoft Word is a word processor - a program used to create textual documents (e.g. letters, essays, books, manuals). Its end product is designed for a human reading it. Some of its competitors are WordPerfect and KWord.
Microsoft Access is a database - a program used to store relational information (e.g. customer data, payroll, scientific data, financial data) in the computer and retrieve parts of it according to a user's need. Some of its competitors are mysql and Oracle.
What is the common problem in manual inventory system?
Disadvantages In Bullet Points:
- Time consuming.
- Chances of Human error. - Paper work results in need of lot of space to keep the data.
- Possibility of data duplication as there's no repetition check like in computer software's e.g Microsoft Access.
- Not more then one person can access data at the same time but in Computerized Information system many people can access the same data on the same time through networking.
How do you retrieve phone numbers when mobile phone will not turn on?
you can't, its impossible as they have been wiped off the phones hard drive/flash drive
Steven. Samsung support
How do you create a freqency table in excel?
You need your actual values that you are getting your frequencies from first. Then you need a table of the category ranges that you want to get the frequencies within, such as having 10, 20, 30 etc., to see the amount of values within each range. Arrange these in a column. Then select the blank cells beside that column. With those blank cells still selected, in the first of them start the formula by typing =FREQUENCY( and then select the cells that you are trying to get frequencies for. Then press the comma key and then select the range with the categories. Then press the ) key. Then press Ctrl - Shift and Enter and the formula will fill out into the selected cells.
The purpose of a query is to extract information from a table or tables, which can be based on some criteria. It can be something simple, like list all names in a table, or something a little more complex, like list all products that are priced over certain amount. A query can be very simple or very complex, depending on your requirements.
What are the advantages of PostgreSQL over MySQL?
The main difference that I see is Postgres' advanced support for things like Views, Stored Procedures, Transactions and other more advanced database functions. This is not to say that MySQL does not support these, however Postgres' advanced features are tuned to be highly performative.
Also, Postgres supports more concurrent users than MySQL.
That all being said, if you web application is a relatively simple, mostly read-only, and doesn't require large number of concurrent connections, MySQL is probably the better way to go, as it is performatively optimized for reading, and is simpler to install, maintain, and has better third-party tool suppport.
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He added the download to the queue.
(Line)
(waiting line)
It is how a computer organizes its (your) files. I believe that the two main (possibly only) file base systems are fat32 and NTFS. Of the two, one is more dependable, and that might be fat32, maybe.
What is the most commonly used database application?
Oracle, MS SQL Server, Informix, Sybase, DB2, MySQL
And for "toy" applications, MS Access.
