Latest questions in Database

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How to change column datatype in SQL database without losing data?

I have a SQL Server database, and ...READ MORE

Feb 25, 2022 in Database by Vaani
 • 7,060 points • 535 views
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What's the difference between a temp table and table variable in SQL Server?

We can build temp tables in SQL ...READ MORE

Feb 25, 2022 in Database by Vaani
 • 7,060 points • 455 views
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Order Of Execution of the SQL query

I'm not sure what sequence this query ...READ MORE

Feb 25, 2022 in Database by Vaani
 • 7,060 points • 686 views
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SELECT.... WHERE... OR

Is there a method to choose data ...READ MORE

Feb 25, 2022 in Database by Vaani
 • 7,060 points • 282 views
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Select .... where .... OR?

Is there a method to choose data ...READ MORE

Feb 24, 2022 in Database by Hemant
 • 140 points • 284 views
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Testing question and answer

This category discusses everything related to SQL/ ...READ MORE

Feb 24, 2022 in Database by anonymous
 • 140 points • 224 views
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Duckworth-Lewis-Stern calculator to calculate the revised target

With the Cricket World Cup going on, ...READ MORE

Feb 24, 2022 in Database by Edureka
 • 13,670 points • 293 views
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If Cell Starts with Text String... Formula

I have formula that checks if the ...READ MORE

Feb 24, 2022 in Database by Edureka
 • 13,670 points • 1,473 views
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How to import JSON file to Excel without coding?

Let's say you have a file named input.json which ...READ MORE

Feb 24, 2022 in Database by Edureka
 • 13,670 points • 531 views
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How to get address, Column Name and Row Name of all marked rows in Excel table as rows in new worksheet

 need the row/column combinations marked with an ...READ MORE

Feb 24, 2022 in Database by Edureka
 • 13,670 points • 1,742 views
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1 answer

Rename column SQL Server 2008

Use sp_rename EXEC sp_RENAME 'TableName.PreviousColumnName' , 'NewColumnName', 'COLUMN' See: SQL SERVER ...READ MORE

Feb 23, 2022 in Database by Vaani
 • 7,060 points • 427 views
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How Stuff and 'For Xml Path' work in SQL Server?

Table is: Id Firstname 4 abc 4 def 4 ghi 4 jkl 4 mno Required output: Id Name 4 abc,def,ghi,jkl,mno Query: SELECT ID, ...READ MORE

Feb 23, 2022 in Database by Neha
 • 9,060 points • 5,469 views
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How to calculate age (in years) based on Date of Birth and getDate()

Following can be a solution to your ...READ MORE

Feb 23, 2022 in Database by Vaani
 • 7,060 points • 1,324 views
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Convert Date format into DD/MMM/YYYY format in SQL Server

Using convert() and style 106, you can ...READ MORE

Feb 23, 2022 in Database by Vaani
 • 7,060 points • 12,958 views
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Converting HTML to Excel? [closed]

Upload html-file(s) Select files from Computer, Google ...READ MORE

Feb 23, 2022 in Database by gaurav
 • 23,260 points • 384 views
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how do I calculate discount with if function in excel?

Suppose a customer gets a 10 percent ...READ MORE

Feb 23, 2022 in Database by gaurav
 • 23,260 points • 9,907 views
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Deleting duplicate rows in Excel using Epplus

You need to re-think this… the while ...READ MORE

Feb 23, 2022 in Database by gaurav
 • 23,260 points • 1,112 views
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How to sort dates from Oldest to Newest in Excel?

Drag down the column to select the ...READ MORE

Feb 23, 2022 in Database by gaurav
 • 23,260 points • 4,696 views
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SQL: Display Full Name + Filter By Subject

Feb 22, 2022 in Database by Neha
 • 9,060 points • 212 views
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Insert into ... values ( SELECT ... FROM ... )

Try: INSERT INTO tableA ( column_1 ) SELECT ...READ MORE

Feb 23, 2022 in Database by Neha
 • 9,060 points • 1,254 views
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1 answer

How to convert DateTime to VarChar

With Microsoft Sql Server: -- -- Create test case -- DECLARE ...READ MORE

Feb 23, 2022 in Database by Neha
 • 9,060 points • 855 views
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1 answer

What is the Oracle PL/SQL "--+rule"?

The answer is in the material you ...READ MORE

Feb 23, 2022 in Database by Neha
 • 9,060 points • 1,677 views
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What is the candidate key in SQL Server?

A Candidate Key is any column or ...READ MORE

Feb 23, 2022 in Database by Neha
 • 9,060 points • 3,845 views
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What is "with (nolock)" in SQL Server?

Can someone explain the ramifications of using ...READ MORE

Feb 22, 2022 in Database by Vaani
 • 7,060 points • 514 views
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1 answer

Date difference: different results in Excel vs. Python

To calculate the date difference, we can ...READ MORE

Feb 23, 2022 in Database by gaurav
 • 23,260 points • 904 views
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1 answer

Convert a number to a letter in C# for use in Microsoft Excel [duplicate]

If you are familiar with using formulas ...READ MORE

Feb 23, 2022 in Database by gaurav
 • 23,260 points • 613 views
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1 answer

Excel - Split cell with a delimiter and if delimiter not found get complete cell value to another cell

Select the row or column that you ...READ MORE

Feb 23, 2022 in Database by gaurav
 • 23,260 points • 517 views
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1 answer

Excel feet and inches to millimeters

There are certain direct formulas to convert ...READ MORE

Feb 23, 2022 in Database by gaurav
 • 23,260 points • 1,424 views
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1 answer

SQL SELECT WHERE field contains words

Use this query to include any of words: SELECT * ...READ MORE

Feb 21, 2022 in Database by Neha
 • 9,060 points • 19,090 views
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1 answer

SQL count rows in a table

A fast way of doing this would ...READ MORE

Feb 21, 2022 in Database by Neha
 • 9,060 points • 567 views
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1 answer

SQL query to find third highest salary in company

The easiest way to work this out ...READ MORE

Feb 21, 2022 in Database by Neha
 • 9,060 points • 45,045 views
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What is "with (nolock)" in SQL Server?

Using READ UNCOMMITED as a transaction isolation ...READ MORE

Feb 21, 2022 in Database by Neha
 • 9,060 points • 432 views
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Reading Excel File using Python, how do I get the values of a specific column with indicated column name?

So the key parts are to grab ...READ MORE

Feb 21, 2022 in Database by gaurav
 • 23,260 points • 4,309 views
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Change default 'delimiters' in excel

Select a non-empty cell. Do Data -> Text ...READ MORE

Feb 21, 2022 in Database by gaurav
 • 23,260 points • 1,422 views
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1 answer

Merging Two excel files as two sheets in one workbook in java

Basically for this, you need to create ...READ MORE

Feb 21, 2022 in Database by gaurav
 • 23,260 points • 856 views
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1 answer

Group by Sum in Excel

It is very easy and you can ...READ MORE

Feb 21, 2022 in Database by gaurav
 • 23,260 points • 441 views
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1 answer

How do I use ROW_NUMBER()?

You can use the query as: SELECT COUNT(*) ...READ MORE

Feb 21, 2022 in Database by Vaani
 • 7,060 points • 380 views
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How can I define a composite primary key in SQL?

A primary key is unique and it ...READ MORE

Feb 21, 2022 in Database by Vaani
 • 7,060 points • 1,190 views
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What is the definition of cardinality in SQL?

My book definition of Database Systems does ...READ MORE

Feb 18, 2022 in Database by Neha
 • 9,060 points • 630 views
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1 answer

How to insert date values into table?

You have to convert the literal to ...READ MORE

Feb 18, 2022 in Database by Vaani
 • 7,060 points • 2,642 views
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What is the difference between HAVING and WHERE in SQL?

HAVING: It is used to check after the aggregation ...READ MORE

Feb 17, 2022 in Database by Vaani
 • 7,060 points • 597 views
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Function vs. Stored Procedure in SQL Server

Functions are calculated values that cannot make ...READ MORE

Feb 17, 2022 in Database by Neha
 • 9,060 points
edited Feb 17, 2022 by Neha • 18,512 views
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SQL WITH clause example

Oracle introduced the SQL WITH clause in ...READ MORE

Feb 17, 2022 in Database by Neha
 • 9,060 points • 276 views
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1 answer

How to Insert date value in SQL table

Always use ANSI default string literal format for date i.e. YYYY-MM-DD like below. INSERT ...READ MORE

Feb 17, 2022 in Database by Neha
 • 9,060 points • 165,315 views
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What is the difference between SQL, PL-SQL and T-SQL?

SQL SQL is the standard language for relational ...READ MORE

Feb 16, 2022 in Database by Vaani
 • 7,060 points • 676 views
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Difference between datetime and timestamp in sqlserver?

Timestamp is a synonym for rowversion, according ...READ MORE

Feb 16, 2022 in Database by Vaani
 • 7,060 points • 4,348 views
0 votes
1 answer

How do I perform an IF THEN statement in an SQL SELECT?

The CASE statement is the closest to IF in ...READ MORE

Feb 16, 2022 in Database by Vaani
 • 7,060 points • 1,286 views
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1 answer

Is SQL syntax case sensitive?

The SQL keywords (SELECT, FROM, WHERE, etc.) ...READ MORE

Feb 16, 2022 in Database by Vaani
 • 7,060 points • 10,155 views
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1 answer

Syntax of for-loop in SQL Server

TSQL has no for-loop, we have only ...READ MORE

Feb 15, 2022 in Database by Neha
 • 9,060 points • 730 views
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1 answer

How to do version control for SQL Server database?

Not only can you compare objects at ...READ MORE

Feb 15, 2022 in Database by Neha
 • 9,060 points • 446 views
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