Most voted questions in Database

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SQL Server Convert Varchar to Datetime

Try this: SELECT CONVERT(Datetime, '2011-09-28 18:01:00', 120) -- ...READ MORE

Sep 13, 2022 in Database by narikkadan
 • 63,600 points • 6,663 views
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1 answer

Oracle SQL Developer: Failure - Test failed: The Network Adapter could not establish the connection?

 There were multiple issues. If you encounter ...READ MORE

Sep 13, 2022 in Database by narikkadan
 • 63,600 points • 5,829 views
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java.sql.SQLException: IO Exception : The Network adapter could not establish the connection?

As a result of our chat, you ...READ MORE

Sep 13, 2022 in Database by narikkadan
 • 63,600 points • 6,256 views
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Query comparing dates in SQL

I have a table containing dates for ...READ MORE

Sep 12, 2022 in Database by Kithuzzz
 • 38,000 points • 1,033 views
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1 answer

Error - SqlDateTime overflow. Must be between 1/1/1753 12:00:00 AM and 12/31/9999 11:59:59 PM

This works quite well for SQL min/max dates ...READ MORE

Sep 13, 2022 in Database by narikkadan
 • 63,600 points • 6,708 views
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How to display databases in Oracle 11g using SQL*Plus

A MySQL "database" can be compared to ...READ MORE

Sep 12, 2022 in Database by narikkadan
 • 63,600 points • 3,676 views
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1 answer

How to select from multiple tables without a JOIN ?

Try this: SELECT ... FROM ( SELECT ...READ MORE

Sep 12, 2022 in Database by narikkadan
 • 63,600 points • 6,788 views
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1 answer

How can I confirm a database is Oracle & what version it is using SQL?

Run this SQL: select * from v$version; Output: BANNER ---------------------------------------------------------------- Oracle Database ...READ MORE

Sep 12, 2022 in Database by narikkadan
 • 63,600 points • 990 views
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1 answer

How do I create a table based on another table

Although CREATE TABLE AS... SELECT does exist ...READ MORE

Sep 12, 2022 in Database by narikkadan
 • 63,600 points • 1,155 views
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1 answer

Using RegEx in SQL Server

Because LIKE can be used instead of managed ...READ MORE

Sep 12, 2022 in Database by narikkadan
 • 63,600 points • 1,132 views
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1 answer

What's the difference between VARCHAR and CHAR?

CHAR is a fixed-length character data type, ...READ MORE

Apr 26, 2023 in Database by Kanav Chopra
edited Mar 5 • 892 views
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1 answer

SQL WHERE ID IN (id1, id2, ..., idn)

Option 1 is the only good solution. Why? Option ...READ MORE

Sep 12, 2022 in Database by narikkadan
 • 63,600 points • 7,146 views
0 votes
1 answer

DB2 SQL error sqlcode=-104 sqlstate=42601

You missed the from clause: SELECT * from TCCAWZTXD.TCC_COIL_DEMODATA WHERE ...READ MORE

Sep 12, 2022 in Database by narikkadan
 • 63,600 points • 4,350 views
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1 answer

Add a column with a default value to an existing table in SQL Server

Syntax: ALTER TABLE {TABLENAME} ADD {COLUMNNAME} {TYPE} {NULL|NOT ...READ MORE

Sep 12, 2022 in Database by narikkadan
 • 63,600 points • 2,766 views
0 votes
1 answer

Login failed for user 'sa'. The user is not associated with a trusted SQL Server connection. (Microsoft SQL Server, Error: 18452) in sql 2008

Solution Go to Start > Programs > Microsoft SQL Server > Enterprise Manager. Right-click the SQL ...READ MORE

Sep 12, 2022 in Database by narikkadan
 • 63,600 points • 1,253 views
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1 answer

How to calculate percentage with a SQL statement

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

Sep 12, 2022 in Database by narikkadan
 • 63,600 points • 6,173 views
0 votes
1 answer

What are projection and selection?

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

Sep 12, 2022 in Database by narikkadan
 • 63,600 points • 7,944 views
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1 answer

Add primary key to existing table

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

Sep 12, 2022 in Database by narikkadan
 • 63,600 points • 838 views
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1 answer

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
 • 63,600 points • 1,803 views
0 votes
1 answer

PL/MySQL does it exist?

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

Sep 11, 2022 in Database by narikkadan
 • 63,600 points • 1,741 views
0 votes
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
 • 63,600 points • 2,481 views
0 votes
1 answer

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
 • 63,600 points
edited Jul 5, 2023 by Khan Sarfaraz • 4,014 views
0 votes
1 answer

How to execute function in SQL Server 2008

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

Sep 11, 2022 in Database by narikkadan
 • 63,600 points • 1,088 views
0 votes
1 answer

Calculate a Running Total in SQL Server

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

Sep 11, 2022 in Database by narikkadan
 • 63,600 points • 1,912 views
0 votes
1 answer

Difference between EXISTS and IN in SQL?

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

Sep 11, 2022 in Database by narikkadan
 • 63,600 points • 986 views
0 votes
1 answer

SQL Server WITH statement

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

Sep 10, 2022 in Database by narikkadan
 • 63,600 points • 925 views
0 votes
1 answer

How to convert date to a format `mm/dd/yyyy`

My date of birth change READ MORE

Feb 23, 2023 in Database by anonymous
edited Mar 5 • 4,497 views
0 votes
1 answer

Use of contains() in sql server

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

Sep 10, 2022 in Database by narikkadan
 • 63,600 points • 1,334 views
0 votes
1 answer

SQL keys, MUL vs PRI vs UNI

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

Sep 10, 2022 in Database by narikkadan
 • 63,600 points • 1,818 views
0 votes
1 answer

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
 • 63,600 points • 1,438 views
0 votes
1 answer

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
 • 63,600 points • 813 views
0 votes
1 answer

What does the "@" symbol do in SQL?

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

Sep 10, 2022 in Database by narikkadan
 • 63,600 points • 1,523 views
0 votes
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
 • 63,600 points • 5,580 views
0 votes
1 answer

Add Auto-Increment ID to existing table?

Make sure none of your other columns ...READ MORE

Feb 8, 2023 in Database by JPC
edited Mar 5 • 1,474 views
0 votes
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
 • 63,600 points • 994 views
0 votes
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
 • 38,000 points • 804 views
0 votes
0 answers

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
 • 38,000 points • 752 views
0 votes
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
 • 38,000 points • 609 views
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0 answers

SQL update query using joins

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

Sep 6, 2022 in Database by Kithuzzz
 • 38,000 points • 982 views
0 votes
0 answers

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
 • 38,000 points • 1,417 views
0 votes
0 answers

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
 • 38,000 points • 1,014 views
0 votes
0 answers

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
 • 38,000 points • 839 views
0 votes
0 answers

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
 • 38,000 points • 683 views
0 votes
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
 • 38,000 points • 1,199 views
0 votes
0 answers

Use '=' or LIKE to compare strings in SQL?

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

Sep 6, 2022 in Database by Kithuzzz
 • 38,000 points • 721 views
0 votes
0 answers

DB2 SQL error: SQLCODE: -206, SQLSTATE: 42703

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

Sep 5, 2022 in Database by Kithuzzz
 • 38,000 points • 1,666 views
0 votes
0 answers

Copy data into another table

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

Sep 5, 2022 in Database by Kithuzzz
 • 38,000 points • 520 views
0 votes
0 answers

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
 • 38,000 points • 919 views
0 votes
0 answers

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
 • 38,000 points • 2,955 views
0 votes
0 answers

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
 • 38,000 points • 1,372 views
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