Here is your Answer:-
DDL Commands:- DDL means Data Definition Language. It is used to create and modify the structure of database objects in SQL.
DML Command:- DML Command in SQL database stands for Data Manipulation Language. DML commands are used to retrieve, store, Modify, delete, insert and update data in database.
Answer:
Structured Query Language(SQL) as we all know is the database language by the use of which we can perform certain operations on the existing database and also we can use this language to create a database. SQL uses certain commands like Create, Drop, Insert, etc. to carry out the required tasks.
These SQL commands are mainly categorized into four categories as:
DDL – Data Definition Language
DDL – Data Definition LanguageDQl – Data Query Language
DDL – Data Definition LanguageDQl – Data Query LanguageDML – Data Manipulation Language
DDL – Data Definition LanguageDQl – Data Query LanguageDML – Data Manipulation LanguageDCL – Data Control Language
Though many resources claim there to be another category of SQL clauses TCL – Transaction Control Language. So we will see in detail about TCL as well.
DDL (Data Definition Language):
DDL or Data Definition Language actually consists of the SQL commands that can be used to define the database schema. It simply deals with descriptions of the database schema and is used to create and modify the structure of database objects in the database.DDL is a set of SQL commands used to create, modify, and delete database structures but not data. These commands are normally not used by a general user, who should be accessing the database via an application.
List of DDL commands:
CREATE: This command is used to create the database or its objects (like table, index, function, views, store procedure, and triggers).
DROP: This command is used to delete objects from the database.
ALTER: This is used to alter the structure of the database.
TRUNCATE: This is used to remove all records from a table, including all spaces allocated for the records are removed.
COMMENT: This is used to add comments to the data dictionary.
RENAME: This is used to rename an object existing in the database.
DQL (Data Query Language):
DQL statements are used for performing queries on the data within schema objects. The purpose of the DQL Command is to get some schema relation based on the query passed to it. We can define DQL as follows it is a component of SQL statement that allows getting data from the database and imposing order upon it. It includes the SELECT statement. This command allows getting the data out of the database to perform operations with it. When a SELECT is fired against a table or tables the result is compiled into a further temporary table, which is displayed or perhaps received by the program i.e. a front-end.
List of DQL:
SELECT: It is used to retrieve data from the database.
DML(Data Manipulation Language):
The SQL commands that deals with the manipulation of data present in the database belong to DML or Data Manipulation Language and this includes most of the SQL statements. It is the component of the SQL statement that controls access to data and to the database. Basically, DCL statements are grouped with DML statements.
List of DML commands:
INSERT : It is used to insert data into a table.
UPDATE: It is used to update existing data within a table.
DELETE : It is used to delete records from a database table.
LOCK: Table control concurrency.
CALL: Call a PL/SQL or JAVA subprogram.
EXPLAIN PLAN: It describes the access path to data.
DCL (Data Control Language):
DCL includes commands such as GRANT and REVOKE which mainly deal with the rights, permissions, and other controls of the database system.
List of DCL commands:
GRANT: This command gives users access privileges to the database.
REVOKE: This command withdraws the user’s access privileges given by using the GRANT command.
Though many resources claim there to be another category of SQL clauses TCL – Transaction Control Language. So we will see in detail about TCL as well. TCL commands deal with the transaction within the database.
List of TCL commands:
COMMIT: Commits a Transaction.
ROLLBACK: Rollbacks a transaction in case of any error occurs.
SAVEPOINT:Sets a savepoint within a transaction.
SET TRANSACTION: Specify characteristics for the transaction.
A ________________ is an electrical channel that transfers bits internally within the circuitry of a computer, allowing the devices to communicate with each other.
Answer:
RAM
Explanation:
Random Access Memory (RAM) is a type of memory that is used to store data. RAM data can be accessed almost instantaneously regardless of where it is stored in memory, making it extremely fast. RAM communicates with the computer's CPU at a breakneck speed. I hope this helps! ^-^
Who authors hype for major stars?
fans of the star
entertainers themselves
PR teams
fans of other stars
Answer:
PR teams
Explanation:
What type of hard drive has no moving parts, making it fast and durable?.
Answer:
Solid-State Drive, also the fastest hard drive at the moment, Durable depending on the brand.
Mira sold flowers to raise money for the annual field trip. Here is the list that shows the number of flowers she sold in 1 day.
A student enters the names of months in cells A2 to A5 with the heading "Month" in cell A1. Then he enters the number of days in each moth in cells B2 to B5 with the heading "Days" in cell B2. In order to arrange the names of the months in cells A6 to E6 with heading "Month" in cell A6 and the number of days each month in cells A7 to E7 with heading "Days" in cell A7, he can use the formula =TRANSPOSE(A1:B5).
A. True
B. False
Who knows about creating "A Discord Bot With Python"
Only answer if you have experience
Answer:
I have!
A discord bot helps you automate tasks on the server. It's easier to manage and welcome new users, moderate, and more.
im a dev on discord
1 Go to the Discord Developer Portal (https://discord.com/developers/applications)
2 Click on the "New Application" button and give your application a name
3 Go to the "Bot" tab and click "Add Bot" to create a bot account for your application
4 Make sure to copy your bot's token as you will need it later
5 Open your terminal or command prompt and run pip install discord.py
6 Create a new Python file in your project folder and name it something like bot.py
7 Import the Discord.py library and create a new client object
8 Add an event listener for the 'message' event to listen for messages in the server and respond to them
9 Add the bot token to the client object:
client.run('your-bot-token-here')
10 Run the bot
In your terminal, run python bot.py to start the bot
11 If everything is working, you should see a message in the console that says "Logged in as [your bot's name]!"
Deployment was canceled bymicrosoft. Visualstudio. Services. Releasemanagement.
Deployment was canceled bymicrosoft. Visualstudio. Services. Releasemanagement is known to be an error message.
Why the message above?This situation often occur when the win2016 is said to be deprecated and as such, when you use vs2017-win2016 runs, it tends to fail in course of the brownout timeframe.
Note that Deployment was canceled bymicrosoft. Visualstudio. Services. Releasemanagement is known to be an error message that shows that release deploy failed.
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Actives? Need help with my homework
Answer:
yea just find it
Explanation:
When backing up your original content and data and saving it in two places, why is it important that these two places aren't on the same device
Answer:
because a crash could cause you to lose both
Explanation:
In the debate over cloud vs. local backup, there are some types of backup that are better in certain locations. If you're performing cloud backup, incremental backups are generally a better fit because they consume fewer resources. You might start out with a full backup in the cloud and then shift to incremental backups. Mirror backup, though, is typically more of an on-premises approach and often involves disks.
This article is part of
Protecting data against loss, corruption, disasters (human-caused or natural) and other problems is one of the top priorities for IT organizations. In concept, the ideas are simple, although implementing an efficient and effective set of backup operations can be difficult.
The term backup has become synonymous with data protection over the past several decades and may be accomplished via several methods. Backup software applications reduce the complexity of performing backup and recovery operations. Backing up data is only one part of a disaster protection plan, and may not provide the level of data and disaster recovery capabilities desired without careful design and testing.
Backup applications have long offered several types of backup operations. The most common backup types are a full backup, incremental backup and differential backup. Other backup types include synthetic full backups
match the technology term with its definition
Answer:
there is no picture
Explanation:
Select L for the items that refer to General Lee, H for General Halleck, and M for General McClellan.
removed from command twice for being overly cautious
Choose.
felt a victory in the North would turn public opinion against the war
Choose.
retreated to Washington, leaving the Confederates free to attack the North
Choose.
stopped the Confederate Army at Antietam
Choose.
was offered command of Union Army after Fort Sumter
Choose
The letters that represent the names of the individuals associated with the various actions are; M, L, H, M, L
What were the Activities of Railroad Presidents?1) The person that removed from command twice for being overly cautious was General McClellan.
2) The person that felt a victory in the North would turn public opinion against the war was General Lee.
3) The person that retreated to Washington, leaving the Confederates free to attack the North was General Halleck
4) The person that stopped the Confederate Army at Antietam was General McClellan.
5) The person that was offered command of Union Army after Fort Sumter was General Lee.
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Get the binary value of your first name initial. Show your solutions and checking.
First name: _____
First name initial: V
Convert: ______
Answer:
01010110
Explanation:
The binary value of V is 01010110
Which type of cache is found as part of more advanced CPUs, is shared among the CPU cores and typically comes in sizes of 8 and 16 MB
Answer: Level 3
Explanation: I studied for the test
What is a PowerPoint slide?
Answer:
A PowerPoint is a presentation program to show a specific topic per slide
a PowerPoint SLIDE is just one part of for example 1 out of 10 slides
for example, if you were asked to do a PowerPoint for a project you'll probably do 20 slides and put a lot of work and detail into making this PowerPoint for a good grade so you don't fail a school year
When the operand on the left side of the * symbol is a string and the operand on the right side is an integer, the * becomes the ________ operator.
If the operand on the left side of the * symbol is a string and the operand on the right side is an integer, the * becomes the repetition operator.
What is an operand?In computer programming, the term operand is known to be a term that connote any object that is said to be capable of being altered.
An example, in "1 + 2" the "1" and "2" are said to be the operands and the plus symbol is known to be an operator. Note that If the operand on the left side of the * symbol is a string and the operand on the right side is an integer, the * becomes the repetition operator.
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you have a variable n with a non-negative value and need to write a loop that will keep print n blank lines what loop construct should you use
Answer:
write down same applications of AI in agriculture,health,education, and business
The set of coordinating colors applied to backgrounds, objects, and text in a presentation is called:
Answer:
theme colors
Explanation:
As said, a group of colors that are used to format text and objects in a document. When you open the Color menu, these colors determine what you see.
School systems must constantly educate teachers and students on ways to prevent these kinds of attacks, in which people use emails to make it appear they are from a legitimate organization and to request private information, such as passwords or other information, which they use for malicious purposes.
A) firewalls.
B) hacking.
C) viruses.
D) spyware.
Because you have eaten at Red Lobster restaurants in the past and provided them with your email address, you now get notifications from them of upcoming specials and coupons for discounted menu items. This is an example of ________.
Answer:
Joining a membership.
Explanation:
Because you provided them with that email, they are now sending you updates, just like you have a membership.
What is the term used to describe spam email scams where the senders attempt to manipulate individuals into the purchase of penny stocks
phishing scams
hope this helps
uring the boot process, the essential portion, or core, of the operating system called the ____________________ is loaded into memory.
Answer:
kernel or boot sector
Explanation:
The term 'aspect ratio' is a specification of ...
A. software.
B.
paper size.
C. printers.
D. monitors.
(1)
Answer:
I believe the correct aswer is D. Monitors
Explanation:
The aspect ratio of a display device is the proportional relationship between the width and the height of the display. It is expressed as two numbers separated by a colon (x:y), where x corresponds to the width and y to the height. Common aspect ratios for displays, past and present, include 5:4, 4:3, 16:10 and 16:9.
I hope that help!
Procedural languages were in the
generation, and non-procedural languages were in the
generation in the evolution of programming languages.
Answer: B
Explanation:
Answer:
Procedural languages were in the third generation, and non-procedural languages were in the fourth generation in the evolution of programming languages.
Explanation:
got 5/5 on the test
In a selection, the else clause executes ______________. a. always b. when the tested condition is false c. when the tested condition is true d. only after the if clause executes
Why would you get the error, "InnerHTML" cannot be defined as null. In the developer console?
Answer:
you have not defined your innerHTML
Explanation:
you need to define it in order for it to work
Answer:
you have not defined your innerHTML
Explanation:
you need to define it in order for it to work
Drag each tile to the correct box.
Arrange the steps in a sequence that you would follow while filtering data in a spreadsheet.
Click the Filter.. option in the submenu of Data.
Click the Data option in the menu of the spreadsheet.
Select the header row of the data to sort.
In the Filter dialog box, enter the filter criteria.
Click OK.
↓
↓
↓
↓
Write a line of code in python that prints the integer portion of the number 21.45.
Answer:
print("21")
Explanation:
the integer is a whole number not a float, the part of the decimal which is a whole number is 21
thank me later
Discuss whether or not something has to be "fun" to be considered a game. Defend one position but include at least one argument for each side; you may include "one scholar argued that XYZ" as an argument for/against your position.
Answer:
Games do not have to be fun to be games. But most are fun. Games can just be a more interesting form of a simulation, a platformer, or a digital universe you may be interested in. For that very case, one scholar argued that, "Games are games, and fun is games, too." And then, another scholar argued, "Games should be fun." Lastly, a 3rd argues that games do not have to be fun, supporting our opinion. With this knowledge, no further, we come to a conclusion.
In conclusion, games are just an interesting escape from our everyday lives. They do not have to be fun. They just need to be good.
Answer:
well, if its not fun, then its not really played, and then it becomes forgotten like the game almost doesn't exist making it not a game?
Explanation:
da answer above is better ._.
What is the difference between a binary operator and a unary operator?.
Answer:
differences between binary operatar and a unary operator
Explanation:
the operators which act upon a single operand are called binary operatar and the operators which required two operands for their action are called unary operator.
Harmon, a nationwide department store, uses checkout scanners to record shoppers' purchases. Which term best describes Harmon's checkout scanners
The term that best describes Harmon's Checkout Scanners is; A touch point device
What is touch point device?The correct description of Harmon's scanners is that they are touch point devices.
TouchPoint devices are usually wrist-worn devices, developed by a team of neuropsychologists, that alternatively stimulates both hemispheres of the brain in order to reduce physiological and psychological stress.
This corresponds with the function of Harmon's scanners.
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