Trending questions in Database

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PL/SQL ORA-01422: exact fetch returns more than requested number of rows

I am getting this error: DECLARE * ERROR at line ...READ MORE

Aug 19, 2022 in Database by Kithuzzz
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nsert into a table, data returned from reserved command

Hi, I want to insert in a table, ...READ MORE

Oct 18, 2022 in Database by Edvaldo
edited Mar 4, 2025 • 442 views
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Not equal <> != operator on NULL

Standard SQL-92 is represented by >; its ...READ MORE

Sep 18, 2022 in Database by narikkadan
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SQL Server: Extract Table Meta-Data (description, fields and their data types)

Unfortunately, you have to utilize sysobjects/syscolumns to ...READ MORE

Sep 17, 2022 in Database by narikkadan
 • 86,360 points • 1,785 views
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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
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What does SELECT COUNT(1) from table_name on any database table mean

An expression to be tested for each ...READ MORE

Sep 19, 2022 in Database by narikkadan
 • 86,360 points • 1,653 views
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Delete all the records

You can use this if you have ...READ MORE

Sep 20, 2022 in Database by narikkadan
 • 86,360 points • 1,608 views
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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
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HAVING without GROUP BY

Does the following make sense in terms ...READ MORE

Aug 21, 2022 in Database by Kithuzzz
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How to retrieve the current version of a MySQL database management system (DBMS)?

Many responses advise using mysql —version. But ...READ MORE

Sep 20, 2022 in Database by narikkadan
 • 86,360 points • 1,579 views
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SQL Server: Invalid Column Name

I am in the process of changing ...READ MORE

Aug 19, 2022 in Database by Kithuzzz
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Pandas cannot open an Excel (.xlsx) file

XLRDError: Excel xlsx file not supported by ...READ MORE

Apr 4, 2022 in Database by gaurav
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Apache Hive - command Describle formatted table

About the describe formatted table command, is ...READ MORE

Oct 15, 2022 in Database by Edvaldo
edited Mar 4, 2025 • 473 views
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Using RegEx in SQL Server

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

Sep 12, 2022 in Database by narikkadan
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SQL Update from One Table to Another Based on a ID Match

Account and credit card numbers are stored ...READ MORE

Aug 22, 2022 in Database by Kithuzzz
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Merge multiple Excel sheets into one sheet

Merging Excel Sheets: A Step-by-Step Guide Make sure ...READ MORE

Apr 4, 2022 in Database by gaurav
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Apache Hive - command Describle formatted table

About the describe formatted table command, is ...READ MORE

Oct 15, 2022 in Database by Edvaldo
edited Mar 4, 2025 • 434 views
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How do I fix the error 'Named Pipes Provider, error 40 - Could not open a connection to' SQL Server'?

I can't seem to link from a ...READ MORE

Aug 22, 2022 in Database by Kithuzzz
 • 38,000 points • 2,804 views
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1 answer

What is the use of a cursor in SQL Server?

Instead of receiving a result set as ...READ MORE

Sep 13, 2022 in Database by narikkadan
 • 86,360 points • 1,822 views
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How to download excel in response from api react.js

Create ReactJS project import React, { Component } ...READ MORE

Mar 31, 2022 in Database by gaurav
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Using ORDER BY and GROUP BY together

Correctly use the  group by: select l.* from table ...READ MORE

Sep 20, 2022 in Database by narikkadan
 • 86,360 points • 1,487 views
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How to upsert (update or insert) in SQL Server 2005

Try to check for existence: IF NOT EXISTS ...READ MORE

Sep 18, 2022 in Database by narikkadan
 • 86,360 points • 1,567 views
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How can I set an SQL Server connection string?

.NET DataProvider -- Standard Connection with username ...READ MORE

Sep 19, 2022 in Database by narikkadan
 • 86,360 points • 1,491 views
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Unpivot with column name

Your inquiry is quite near. The following ...READ MORE

Sep 16, 2022 in Database by narikkadan
 • 86,360 points • 1,619 views
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What is wrong with my SQL here? #1089 - Incorrect prefix key

CREATE TABLE `table`.`users` ( ...READ MORE

Sep 3, 2022 in Database by Kithuzzz
 • 38,000 points • 2,179 views
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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
 • 86,360 points • 1,785 views
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1 answer

CASE .. WHEN expression in Oracle SQL

Use an IN clause. Example: SELECT status, CASE ...READ MORE

Sep 17, 2022 in Database by narikkadan
 • 86,360 points • 1,542 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
 • 38,000 points • 2,009 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
 • 86,360 points • 1,742 views
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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
 • 86,360 points • 1,737 views
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SQL Server PRINT SELECT (Print a select query result)?

I want to print a particular value; ...READ MORE

Aug 9, 2022 in Database by Kithuzzz
 • 38,000 points • 3,098 views
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SQL SELECT from multiple tables

Try this: SELECT p.pid, p.cid, p.pname, c1.name1, c2.name2 FROM ...READ MORE

Sep 16, 2022 in Database by narikkadan
 • 86,360 points • 1,523 views
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Return date as ddmmyyyy in SQL Server

I require the date in the format ...READ MORE

Aug 23, 2022 in Database by Kithuzzz
 • 38,000 points • 2,487 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
 • 38,000 points • 1,916 views
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How to convert date into timestamp in SQL query?

I'm attempting to move data from the ...READ MORE

Aug 19, 2022 in Database by Kithuzzz
 • 38,000 points • 2,641 views
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Vendor code 17002 to connect to SQLDeveloper

When using SQLDeveloper to connect to a ...READ MORE

Sep 2, 2022 in Database by Kithuzzz
 • 38,000 points • 2,006 views
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I want to use CASE statement to update some records in sql server 2005

UPDATE dbo.TestStudents SET LASTNAME = ( ...READ MORE

Sep 2, 2022 in Database by Kithuzzz
 • 38,000 points • 1,983 views
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ORA-01476: "divisor is equal to zero" for SQL query (Oracle 10g)

I'm creating a SQL query with Oracle ...READ MORE

Aug 25, 2022 in Database by Kithuzzz
 • 38,000 points • 2,311 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 • 1,587 views
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UPDATE and REPLACE part of a string

A table I have has two columns: ...READ MORE

Aug 28, 2022 in Database by Kithuzzz
 • 38,000 points • 2,170 views
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Get the last inserted row ID (with SQL statement)

When you add a new record to ...READ MORE

Aug 20, 2022 in Database by Kithuzzz
 • 38,000 points • 2,573 views
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SQL Server : Arithmetic overflow error converting expression to data type int

I'm getting this error: msg 8115, level 16, ...READ MORE

Aug 26, 2022 in Database by Kithuzzz
 • 38,000 points • 2,251 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
 • 86,360 points • 1,665 views
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SQLite in Android How to update a specific row

For a time now, I've been attempting ...READ MORE

Aug 11, 2022 in Database by Kithuzzz
 • 38,000 points • 2,857 views
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When to use "ON UPDATE CASCADE"

I frequently use ON DELETE CASCADE, but ...READ MORE

Aug 25, 2022 in Database by Kithuzzz
 • 38,000 points • 2,255 views
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How to DROP multiple columns with a single ALTER TABLE statement in SQL Server?

In one ALTER TABLE statement, I would ...READ MORE

Sep 2, 2022 in Database by Kithuzzz
 • 38,000 points • 1,898 views
0 votes
1 answer

Add primary key to existing table

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

Sep 12, 2022 in Database by narikkadan
 • 86,360 points • 1,524 views
0 votes
0 answers

SQL Server database restore error: specified cast is not valid. (SqlManagerUI)

For my production website, SQL Server 2008 ...READ MORE

Aug 20, 2022 in Database by Kithuzzz
 • 38,000 points • 2,500 views
0 votes
0 answers

SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified

I've been attempting to solve a significant ...READ MORE

Aug 22, 2022 in Database by Kithuzzz
 • 38,000 points • 2,406 views
0 votes
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The node to traverse cannot be null (Hibernate SQL)

I'm using hibernate to run the following ...READ MORE

Aug 23, 2022 in Database by Kithuzzz
 • 38,000 points • 2,267 views
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