Most voted questions in Database

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How to calculate percentage with a SQL statement

The following has passed my tests, and ...READ MORE

Sep 12, 2022 in Database by narikkadan
 • 63,720 points • 5,584 views
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What are projection and selection?

Projection means choosing which columns (or expressions) the query shall ...READ MORE

Sep 12, 2022 in Database by narikkadan
 • 63,720 points • 7,293 views
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Add primary key to existing table

You have to drop constraint and recreate ...READ MORE

Sep 12, 2022 in Database by narikkadan
 • 63,720 points • 483 views
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What datatype should be used for storing phone numbers in SQL Server 2005?

Does this include: International numbers? Extensions? Other information besides the ...READ MORE

Sep 11, 2022 in Database by narikkadan
 • 63,720 points • 1,594 views
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PL/MySQL does it exist?

Despite the fact that MySQL and PL/SQL ...READ MORE

Sep 11, 2022 in Database by narikkadan
 • 63,720 points • 1,273 views
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1 answer

Difference between numeric, float and decimal in SQL Server

use the float or real data types only if the precision provided by decimal (up ...READ MORE

Sep 11, 2022 in Database by narikkadan
 • 63,720 points • 2,139 views
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java.sql.SQLException: - ORA-01000: maximum open cursors exceeded

The maximum-open-cursors error, also known as ORA-01000, ...READ MORE

Sep 11, 2022 in Database by narikkadan
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edited Jul 5, 2023 by Khan Sarfaraz • 3,372 views
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How to execute function in SQL Server 2008

The function appears not to be being ...READ MORE

Sep 11, 2022 in Database by narikkadan
 • 63,720 points • 884 views
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Calculate a Running Total in SQL Server

The problem is that the SQL Server ...READ MORE

Sep 11, 2022 in Database by narikkadan
 • 63,720 points • 1,481 views
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Difference between EXISTS and IN in SQL?

Although the exists keyword can be used ...READ MORE

Sep 11, 2022 in Database by narikkadan
 • 63,720 points • 775 views
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SQL Server WITH statement

I'm going to guess because I don't ...READ MORE

Sep 10, 2022 in Database by narikkadan
 • 63,720 points • 588 views
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How to convert date to a format `mm/dd/yyyy`

Your data is already in varchar, thus ...READ MORE

Sep 10, 2022 in Database by narikkadan
 • 63,720 points • 4,099 views
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Use of contains() in sql server

The straightforward method is shown here. You ...READ MORE

Sep 10, 2022 in Database by narikkadan
 • 63,720 points • 821 views
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SQL keys, MUL vs PRI vs UNI

It denotes that the field is (a ...READ MORE

Sep 10, 2022 in Database by narikkadan
 • 63,720 points • 1,411 views
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How can I use LTRIM/RTRIM to search and replace leading/trailing spaces?

Use LTRIM/RTRIM to eliminate spaces from the ...READ MORE

Sep 10, 2022 in Database by narikkadan
 • 63,720 points • 1,042 views
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Get list of databases from SQL Server

Execute: SELECT name FROM master.sys.databases I hope this helps ...READ MORE

Sep 10, 2022 in Database by narikkadan
 • 63,720 points • 469 views
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What does the "@" symbol do in SQL?

The @CustID denotes a parameter for which ...READ MORE

Sep 10, 2022 in Database by narikkadan
 • 63,720 points • 1,131 views
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1 answer

How to solve : SQL Error: ORA-00604: error occurred at recursive SQL level 1

I saw the problem in the line ...READ MORE

Sep 10, 2022 in Database by narikkadan
 • 63,720 points • 4,531 views
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1 answer

Add Auto-Increment ID to existing table?

Try this ALTER TABLE `users` ADD `id` INT ...READ MORE

Sep 10, 2022 in Database by narikkadan
 • 63,720 points • 1,227 views
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1 answer

How do I run an sql query in php?

Try this: <?php $conn = new mysqli('localhost', 'jaydeep_mor', 'jaydeep_mor', ...READ MORE

Sep 10, 2022 in Database by narikkadan
 • 63,720 points • 704 views
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0 answers

Using If else in SQL Select statement

In my select statement, two columns will ...READ MORE

Sep 6, 2022 in Database by Kithuzzz
 • 38,010 points • 467 views
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How to concat two columns into one with the existing column name in mysql?

Using MySQL, I want to combine two ...READ MORE

Sep 6, 2022 in Database by Kithuzzz
 • 38,010 points • 581 views
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0 answers

How to return only the Date from a SQL Server DateTime datatype

SELECT GETDATE() Returns: 2008-09-22 15:24:13.790 I want that date part ...READ MORE

Sep 6, 2022 in Database by Kithuzzz
 • 38,010 points • 467 views
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SQL update query using joins

A value that is returned from a ...READ MORE

Sep 6, 2022 in Database by Kithuzzz
 • 38,010 points • 600 views
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How to find server name of SQL Server Management Studio

Microsoft SQL Server 2008 is now installed. ...READ MORE

Sep 6, 2022 in Database by Kithuzzz
 • 38,010 points • 1,119 views
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SQL Server® 2016, 2017 and 2019 Express full download

Previous versions of SQL Server Express were ...READ MORE

Sep 6, 2022 in Database by Kithuzzz
 • 38,010 points • 717 views
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com.microsoft.sqlserver.jdbc.SQLServerDriver not found error

I'm having the same issue as this thread. ...READ MORE

Sep 6, 2022 in Database by Kithuzzz
 • 38,010 points • 693 views
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Direct link for downloading Microsoft SQL Server 2008 R2 Express SP2 without clicking any button?

Do you know of a button-free direct ...READ MORE

Sep 6, 2022 in Database by Kithuzzz
 • 38,010 points • 398 views
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0 answers

How can I add the sqlite3 module to Python?

Can someone please explain how to install ...READ MORE

Sep 6, 2022 in Database by Kithuzzz
 • 38,010 points • 785 views
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Use '=' or LIKE to compare strings in SQL?

There is a (nearly religious) debate over ...READ MORE

Sep 6, 2022 in Database by Kithuzzz
 • 38,010 points • 443 views
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DB2 SQL error: SQLCODE: -206, SQLSTATE: 42703

I am getting this JDBC exception. I ...READ MORE

Sep 5, 2022 in Database by Kithuzzz
 • 38,010 points • 1,279 views
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Copy data into another table

How can I use SQL Server to ...READ MORE

Sep 5, 2022 in Database by Kithuzzz
 • 38,010 points • 410 views
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How to rename a table in SQL Server?

The SQL query that I have used is : ALTER ...READ MORE

Sep 5, 2022 in Database by Kithuzzz
 • 38,010 points • 717 views
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Simple way to transpose columns and rows in SQL?

How can I quickly switch rows and ...READ MORE

Sep 5, 2022 in Database by Kithuzzz
 • 38,010 points • 2,669 views
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How to SUM two fields within an SQL query

The sum of two fields that are ...READ MORE

Sep 5, 2022 in Database by Kithuzzz
 • 38,010 points • 1,187 views
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How do you create a yes/no boolean field in SQL server?

How should a yes/no, or boolean, field ...READ MORE

Sep 5, 2022 in Database by Kithuzzz
 • 38,010 points • 804 views
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How to generate a Guid in SQL Server?

I have to make a SQL Id ...READ MORE

Sep 5, 2022 in Database by Kithuzzz
 • 38,010 points • 652 views
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SQL Error: ORA-00913: too many values

The table name, column names, datatype, and ...READ MORE

Sep 5, 2022 in Database by Kithuzzz
 • 38,010 points • 1,555 views
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MySQL error code: 1175 during UPDATE in MySQL Workbench

I'm attempting to insert the number 1 ...READ MORE

Sep 5, 2022 in Database by Kithuzzz
 • 38,010 points • 1,337 views
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Why did a network-related or instance-specific error occur while establishing a connection to SQL Server?

I'm incredibly annoyed. Everything is wonderful with ...READ MORE

Sep 5, 2022 in Database by narikkadan
 • 63,720 points • 1,588 views
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0 answers

What is the Oracle equivalent of SQL Server's IsNull() function?

In SQL Server we can type IsNull() ...READ MORE

Sep 4, 2022 in Database by Kithuzzz
 • 38,010 points • 491 views
0 votes
0 answers

Create SQLite database in android

In my project, I want to construct ...READ MORE

Sep 4, 2022 in Database by Kithuzzz
 • 38,010 points • 444 views
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0 answers

How to see the real SQL query in Python cursor.execute using pyodbc and MS-Access

I use the following code in Python ...READ MORE

Sep 4, 2022 in Database by Kithuzzz
 • 38,010 points • 1,248 views
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0 answers

Convert Month Number to Month Name Function in SQL

I have the months 1, 2, 3, ...READ MORE

Sep 4, 2022 in Database by Kithuzzz
 • 38,010 points • 1,899 views
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0 answers

Insert multiple rows into single column

I am having problems adding numerous data ...READ MORE

Sep 4, 2022 in Database by Kithuzzz
 • 38,010 points • 1,279 views
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0 answers

SQL Error: ORA-00942 table or view does not exist

I'm using SQL Developer, and after creating ...READ MORE

Sep 4, 2022 in Database by Kithuzzz
 • 38,010 points • 1,003 views
0 votes
0 answers

Difference between Implicit Conversion and Explicit Conversion in SQL Server

Could you kindly explain the differences between ...READ MORE

Sep 4, 2022 in Database by Kithuzzz
 • 38,010 points • 437 views
0 votes
0 answers

Sql Server 'Saving changes is not permitted' error ► Prevent saving changes that require table re-creation

If I try to change a column ...READ MORE

Sep 4, 2022 in Database by Kithuzzz
 • 38,010 points • 1,359 views
0 votes
0 answers

How to get a particular date format ('dd-MMM-yyyy') in SELECT query SQL Server 2008 R2

To modify the format of a date ...READ MORE

Sep 4, 2022 in Database by Kithuzzz
 • 38,010 points • 4,182 views
0 votes
0 answers

MySQL Multiple Joins in one query?

I have the following query: SELECT dashboard_data.headline, ...READ MORE

Sep 4, 2022 in Database by narikkadan
 • 63,720 points • 426 views
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