Latest questions in Database

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Get json object values and store as arrays

[ ['david','female','john','e6a33eee180b07e563d74fee8c2c66b8',1,1,'roger63'], ...READ MORE

Nov 16, 2022 in Database by Ashwini
 • 4,070 points • 368 views
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Can PHP arrays hold items of different type?

The definition of an array in other ...READ MORE

Nov 16, 2022 in Database by Ashwini
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ERROR 1064 (42000): You have an error in your SQL syntax;

It is varchar and not var_char CREATE DATABASE IF NOT EXISTS ...READ MORE

Sep 20, 2022 in Database by narikkadan
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Delete all the records

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

Sep 20, 2022 in Database by narikkadan
 • 60,280 points • 254 views
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How can I create a unique constraint on my column (SQL Server 2008 R2)?

The "indexes and keys" dialogue, not the ...READ MORE

Sep 20, 2022 in Database by narikkadan
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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
 • 60,280 points • 213 views
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IN Clause with NULL or IS NULL

An in statement will be parsed identically to field=val1 or ...READ MORE

Sep 20, 2022 in Database by narikkadan
 • 60,280 points • 228 views
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What is the difference between a primary key and a surrogate key?

The unique key in your database that ...READ MORE

Sep 20, 2022 in Database by narikkadan
 • 60,280 points • 2,939 views
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How do I obtain a Query Execution Plan in SQL Server?

There are several ways to get an ...READ MORE

Sep 20, 2022 in Database by narikkadan
 • 60,280 points • 294 views
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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
 • 60,280 points • 178 views
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How do I do multiple CASE WHEN conditions using SQL Server 2008?

There are three formats of the case expression. ...READ MORE

Sep 20, 2022 in Database by narikkadan
 • 60,280 points • 259 views
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java.sql.SQLException: Column count doesn't match value count at row 1

I think PreparedStatement would be a better choice. I ...READ MORE

Sep 20, 2022 in Database by narikkadan
 • 60,280 points • 891 views
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INSERT statement conflicted with the FOREIGN KEY constraint - SQL Server

Your table dbo.Sup Item Cat refers to ...READ MORE

Sep 19, 2022 in Database by narikkadan
 • 60,280 points • 3,133 views
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Escape Character in SQL Server

You can escape quotation like this: select 'it''s ...READ MORE

Sep 19, 2022 in Database by narikkadan
 • 60,280 points • 290 views
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Function to Calculate Median in SQL Server

Use a simple-ish median calculation for a ...READ MORE

Sep 19, 2022 in Database by narikkadan
 • 60,280 points • 473 views
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Highest Salary in each department

SELECT DeptID, MAX(Salary) FROM EmpDetails GROUP BY ...READ MORE

Sep 19, 2022 in Database by narikkadan
 • 60,280 points • 507 views
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SQL Server: IF EXISTS ; ELSE

Try this: update b set code = ...READ MORE

Sep 19, 2022 in Database by narikkadan
 • 60,280 points • 1,099 views
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1 answer

Best way to do nested case statement logic in SQL Server

Try some sort of COALESCE trick: SELECT COALESCE( ...READ MORE

Sep 19, 2022 in Database by narikkadan
 • 60,280 points • 2,680 views
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1 answer

How can I set an SQL Server connection string?

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

Sep 19, 2022 in Database by narikkadan
 • 60,280 points • 207 views
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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
 • 60,280 points • 186 views
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1 answer

How to find third or nᵗʰ maximum salary from salary table?

Use ROW_NUMBER(if you want a single) or DENSE_RANK(for all ...READ MORE

Sep 19, 2022 in Database by narikkadan
 • 60,280 points • 262 views
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How to check SQL Server version

Connect to the instance of SQL Server, ...READ MORE

Sep 19, 2022 in Database by narikkadan
 • 60,280 points • 174 views
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Is there a combination of "LIKE" and "IN" in SQL?

There is no LIKE & IN combination ...READ MORE

Sep 18, 2022 in Database by narikkadan
 • 60,280 points • 240 views
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How to format datetime in SQL SERVER

In SQL Server 2012 and up you ...READ MORE

Sep 18, 2022 in Database by narikkadan
 • 60,280 points • 215 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
 • 60,280 points • 231 views
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1 answer

How to find top three highest salary in emp table in oracle?

Use this: SELECT *FROM ...READ MORE

Sep 18, 2022 in Database by narikkadan
 • 60,280 points • 1,271 views
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1 answer

Why do I need to configure the SQL dialect of a data source?

Dialect is defined as "a language's variety." ...READ MORE

Sep 18, 2022 in Database by narikkadan
 • 60,280 points • 325 views
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1 answer

SQL like search string starts with

SELECT * from games WHERE (lower(title) LIKE ...READ MORE

Sep 18, 2022 in Database by narikkadan
 • 60,280 points • 897 views
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1 answer

Not equal <> != operator on NULL

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

Sep 18, 2022 in Database by narikkadan
 • 60,280 points • 180 views
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1 answer

Multiple SQL Joins error in W3Schools Tryit Editor

I'm ruining this query on w3school even ...READ MORE

Sep 18, 2022 in Database by narikkadan
 • 60,280 points • 705 views
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1 answer

Oracle PL/SQL - ORA-01403 "No data found" when using "SELECT INTO"

Just populate the field directly, using ordering ...READ MORE

Sep 18, 2022 in Database by narikkadan
 • 60,280 points • 1,634 views
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SQL Server: Multiple table joins with a WHERE clause

It matters whether you place the filter ...READ MORE

Sep 18, 2022 in Database by narikkadan
 • 60,280 points • 203 views
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1 answer

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
 • 60,280 points • 161 views
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1 answer

org.hibernate.exception.SQLGrammarException: could not extract ResultSet

In the stacktrace, there is a line ...READ MORE

Sep 17, 2022 in Database by narikkadan
 • 60,280 points • 183 views
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1 answer

How to print SQL statement in codeigniter model

To display the query string: print_r($this->db->last_query()); ...READ MORE

Sep 17, 2022 in Database by narikkadan
 • 60,280 points • 852 views
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1 answer

SQL - Update multiple records in one query

Try either multi-table update syntax: UPDATE config t1 ...READ MORE

Sep 17, 2022 in Database by narikkadan
 • 60,280 points • 906 views
0 votes
1 answer

Finding duplicate values in a SQL table

SELECT name, email, COUNT(*) FROM ...READ MORE

Sep 17, 2022 in Database by narikkadan
 • 60,280 points • 212 views
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1 answer

What is the equivalent of 'describe table' in SQL Server?

Use the sp_columns stored procedure: exec sp_columns MyTable I hope this ...READ MORE

Sep 17, 2022 in Database by narikkadan
 • 60,280 points • 165 views
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1 answer

Multiple rows to one comma-separated value in Sql Server

Test Data DECLARE @Table1 TABLE(ID INT, Value INT) INSERT ...READ MORE

Sep 17, 2022 in Database by narikkadan
 • 60,280 points • 10,792 views
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1 answer

Getting only Month and Year from SQL DATE

In addition to the advice already given, ...READ MORE

Sep 17, 2022 in Database by narikkadan
 • 60,280 points • 361 views
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1 answer

How to delete multiple rows in SQL where id = (x to y)

If you need to delete based on ...READ MORE

Sep 17, 2022 in Database by narikkadan
 • 60,280 points • 1,517 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
 • 60,280 points • 137 views
0 votes
1 answer

How to Execute SQL Server Stored Procedure in SQL Developer?

You don't need EXEC clause. Simply use: proc_name ...READ MORE

Sep 16, 2022 in Database by narikkadan
 • 60,280 points • 631 views
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1 answer

SQL Server string to date conversion

Try this Cast('7/7/2011' as datetime) And Convert(DATETIME, '7/7/2011', 101) See CAST and ...READ MORE

Sep 16, 2022 in Database by narikkadan
 • 60,280 points • 582 views
0 votes
1 answer

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
 • 60,280 points • 196 views
0 votes
1 answer

SQL JOIN - WHERE clause vs. ON clause

They are not the same thing. Consider these ...READ MORE

Sep 16, 2022 in Database by narikkadan
 • 60,280 points • 196 views
0 votes
1 answer

How to add a Try/Catch to SQL Stored Procedure

See TRY...CATCH (Transact-SQL) CREATE PROCEDURE [dbo].[PL_GEN_PROVN_NO1] ...READ MORE

Sep 16, 2022 in Database by narikkadan
 • 60,280 points • 223 views
0 votes
1 answer

Entity Framework VS LINQ to SQL VS ADO.NET with stored procedures?

First off, if you're starting a new ...READ MORE

Sep 16, 2022 in Database by narikkadan
 • 60,280 points • 1,936 views
0 votes
1 answer

SQL query - Dept and Employee table, some departments may not have managers

Yes, even though I like using JOINs, ...READ MORE

Sep 16, 2022 in Database by narikkadan
 • 60,280 points • 7,035 views
0 votes
1 answer

Storing images in SQL Server?

Following extensive performance testing and analysis, the ...READ MORE

Sep 16, 2022 in Database by narikkadan
 • 60,280 points • 297 views
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