Trending questions in Database

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What is PostgreSQL?

HI... PostgreSQL is one of the top databases ...READ MORE

Oct 22, 2020 in Database by SRI

edited Oct 22, 2020 by Gitika 559 views
+1 vote
0 answers

What are the advantages of SQL? [closed]

Dec 28, 2019 in Database by Yuth
• 130 points

closed Dec 30, 2019 by Kalgi 613 views
+1 vote
3 answers

Difference between SQL and PL/SQL

In Oracle database administration, there are two ...READ MORE

Sep 25, 2019 in Database by gautham
703 views
0 votes
2 answers

Different types of SQL Joins

There are 4 types of joins in ...READ MORE

Dec 9, 2020 in Database by bhavani
979 views
0 votes
1 answer

How to check if a table exists in a given schema

Since you havent mentioned the DBMS in ...READ MORE

Oct 4, 2019 in Database by Daric
• 500 points
1,871 views
0 votes
1 answer

Reorder or reset auto increment primary key

To reset the IDs of my User ...READ MORE

Oct 4, 2019 in Database by Daric
• 500 points
1,567 views
0 votes
1 answer

MySQL query finding values in a comma separated string

To find MySQL query values in a comma-separated ...READ MORE

Oct 4, 2019 in Database by Daric
• 500 points
1,525 views
0 votes
1 answer

Query to list number of records in each table in a database

Use the below code to list number of ...READ MORE

Oct 11, 2019 in Database by Omaiz
• 560 points
649 views
0 votes
1 answer

Which is the Preferred Method of Storing Passwords In Database?

Generally, we can use the sha hash ...READ MORE

Oct 11, 2019 in Database by Omaiz
• 560 points
614 views
0 votes
2 answers

What are the ways to get the count of records in a table

With the help of the SQL count ...READ MORE

Aug 20, 2020 in Database by Okugbe
• 280 points
1,965 views
0 votes
1 answer

How to connect to MySQL Database?

Firstly you must download the MySQLConnection NET ...READ MORE

Oct 11, 2019 in Database by Omaiz
• 560 points
348 views
0 votes
1 answer

showing an error in a MySQL trigger

use this code: CREATE TRIGGER sample_trigger_msg ...READ MORE

Sep 27, 2019 in Database by Omaiz
• 560 points
656 views
0 votes
1 answer

Can we store images in database

Beware that serving images from DB is ...READ MORE

Oct 4, 2019 in Database by Daric
• 500 points
207 views
0 votes
1 answer

How does database indexing work

If you have a book about dogs ...READ MORE

Oct 4, 2019 in Database by Daric
• 500 points
191 views
0 votes
1 answer

How do I reset a sequence in Oracle?

 If you want to set it to ...READ MORE

Sep 27, 2019 in Database by Omaiz
• 560 points
319 views
0 votes
1 answer

Which is faster/best? SELECT * or SELECT col1, col2,......colN

There are four big reasons that select * is ...READ MORE

Sep 27, 2019 in Database by Omaiz
• 560 points
315 views
0 votes
1 answer

Why is SELECT * considered harmful?

If you add fields to the table, ...READ MORE

Sep 27, 2019 in Database by Omaiz
• 560 points
246 views
0 votes
2 answers

Why is SELECT * table_name; is considered harmful?

Hi. Adding to @Tina's answer, there is ...READ MORE

Sep 23, 2019 in Database by Raghu
317 views
0 votes
1 answer

Different subsets of SQL

The various subsets of SQL are as ...READ MORE

Sep 28, 2018 in Database by Sahiti
• 6,360 points
14,604 views
0 votes
0 answers

Which SQL server should we use for SQL queries to be executed?

I mean to say which SQL server ...READ MORE

Aug 18, 2019 in Database by Sonali
208 views
0 votes
1 answer

Which operator is used in the query for pattern matching?

LIKE operator is used for pattern matching, ...READ MORE

Oct 15, 2018 in Database by DataKing99
• 8,240 points
13,113 views
0 votes
1 answer

ORA-12514 TNS:listener does not currently know the service requested in connect descriptor

I had this issue and the fix ...READ MORE

Oct 8, 2018 in Database by Frankie
• 9,830 points
13,200 views
0 votes
1 answer

Difference between single and double quotes in SQL

Single quotes are used to indicate the ...READ MORE

Sep 11, 2018 in Database by CodingByHeart77
• 3,720 points
14,227 views
0 votes
2 answers

Database Lock and its types.

Hello Dataking99, A database lock is used to ...READ MORE

Apr 20, 2020 in Database by Niroj
• 82,720 points
1,550 views
0 votes
1 answer

How to load data of .csv file in MySQL Database Table?

At first, put the dataset in the ...READ MORE

Jul 5, 2019 in Database by Reshma
708 views
0 votes
1 answer

What is the rule to use group by, having and where clause?

Hi samar, this is a very common mistake ...READ MORE

Jul 2, 2019 in Database by anonymous
612 views
0 votes
1 answer

How can I check my all existing table in MySQL database?

Hi Pratik, I understand your problem regarding this ...READ MORE

Jul 1, 2019 in Database by sampriti
• 1,120 points
649 views
+1 vote
1 answer

Do I need to mention primary key for each table?

Hi Pritha, First, there is no hard and ...READ MORE

Jul 4, 2019 in Database by sampriti
• 1,120 points
308 views
0 votes
1 answer

How can I change my existing database name?

Hey Partha, I understand your problem, I think this ...READ MORE

Jul 5, 2019 in Database by sampriti
• 1,120 points
257 views
+1 vote
1 answer

How can I reset my auto_increment column in MYSQL?

Hi Pratim, I understand your issue. I think you ...READ MORE

Jul 2, 2019 in Database by sampriti
• 1,120 points
316 views
+1 vote
1 answer

Difference between cross join and natural join

The cross join produces the cross product ...READ MORE

Oct 12, 2018 in Database by DataKing99
• 8,240 points
10,771 views
0 votes
1 answer

What is the best way to fetch data from table?

Hey Shraddha, I understand your doubts about fetching ...READ MORE

May 25, 2019 in Database by sampriti
• 1,120 points
966 views
0 votes
1 answer

Can you explain what is the difference between UNION and Join?

Hi Sahana,  I got your doubt, Checkout these ...READ MORE

May 30, 2019 in Database by sampriti
• 1,120 points
635 views
0 votes
1 answer

What are the different types of join in SQL?

Hi Suraj, You have a doubt regarding inner join ...READ MORE

May 28, 2019 in Database by sampriti
• 1,120 points
666 views
0 votes
1 answer

How will I get all the rows from my table where name starts with 's' and ending with 'I'?

Hi Santanu, I understand your problem, You can try ...READ MORE

May 28, 2019 in Database by sampriti
• 1,120 points
512 views
0 votes
1 answer

Can you please explain the difference between inner join and outer join in database?

Hi Suraj, You have a doubt regarding inner join ...READ MORE

May 28, 2019 in Database by sampriti
• 1,120 points
431 views
0 votes
1 answer

Do I need to add primary key in each and every table?

Hi Shraddha, You have a doubt to add ...READ MORE

May 29, 2019 in Database by sampriti
• 1,120 points
305 views
0 votes
1 answer

How to sort the data in sql ?

Hi Akash,  If you want to sort ...READ MORE

May 29, 2019 in Database by sampriti
• 1,120 points
300 views
0 votes
1 answer

What do ‘Record’, ‘Field’ and ‘Table’ mean in terms of a database?

You can refer to the following definitions ...READ MORE

Nov 12, 2018 in Database by Sahiti
• 6,360 points
8,827 views
0 votes
1 answer

Find values in a comma separated string in a MySQL query

You can add commas to the left and ...READ MORE

Sep 10, 2018 in Database by Sahiti
• 6,360 points
11,373 views
0 votes
1 answer

MSSQL installation fails at mssql-conf setup

Hi @Denis!  The problem has occurred due to the ...READ MORE

Mar 22, 2019 in Database by Omkar
• 69,210 points
3,065 views
0 votes
3 answers

What is Phantom deadlock?

To understand phantom deadlock, you need an ...READ MORE

Feb 13, 2019 in Database by Ravi kumar
5,660 views
0 votes
1 answer

What does recursive stored procedure?

Recursive stored procedure refers to a stored ...READ MORE

Sep 27, 2018 in Database by Sahiti
• 6,360 points
9,875 views
0 votes
1 answer

Install DB2 on windows

Hey @Alok, follow these instructions: On the DB2 ...READ MORE

Mar 20, 2019 in Database by Kavyashri
1,884 views
0 votes
1 answer

How to schedule a job for SQL query to run daily?

down voteaccepted Expand the SQL Server Agent node ...READ MORE

Oct 25, 2018 in Database by Frankie
• 9,830 points
7,814 views
0 votes
2 answers

How to create a shared database for users for different systems to connect to a single database in another system.?

Like Omkar said, while presenting your project ...READ MORE

Mar 18, 2019 in Database by Vardhan
• 13,200 points
1,504 views
0 votes
1 answer

Error: Cannot connect to the SQL Server on Ubuntu from SSMS - installing mssql on linux

Hey @Rajni, Verify if the server is running ...READ MORE

Mar 17, 2019 in Database by Anvit
1,431 views
0 votes
1 answer

How do I install MariaDB on Windows?

Hwy @Mike, install the latest stable version ...READ MORE

Mar 22, 2019 in Database by Nitin
1,053 views
0 votes
1 answer

How to display the queries executed by a particular user in MySQL?

From the version 5.1.7 onward, MySQL allows ...READ MORE

Mar 7, 2019 in Database by Mishti
• 480 points
1,554 views