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What is causes this error? How can fix it? $find = 'hello'; $data = $this->db->query(… Read more Error: The Used Select Statements Have A Different Number Of Columns, How Is Fix It?

I have a form WinForms form window with a DataGridView. It pulls data from a SQL Server Express dat… Read more C# Visual Studio: How Do I Update A Db From Edit With Datagridview Using Linq?

I have a table like this one RowNum | TranNo | nTotalSales | nBalance 1 | 1 | 800 … Read more How To Convert Columns To Rows?

Suppose I have a table employee with id, user_name, salary. How can I select the record with the 2n… Read more How Can I Select The Record With The 2nd Highest Salary In Database Oracle?

I use php, mysql and html together to show a table. But I want to sort the items by timestamp and g… Read more Sql Sort By Timestamp And Group By Id

When using spring JdbcTemplate with prepared statements we can either set values of the parameters … Read more How Spring Jdbctemplate Recognizes Data Types?

This is my XML whose value i need to store in db table as parent child data. my table would look li… Read more Sql Server: How To Extract Parent Child Relation From Xml & Store In Table

I would like to write a simple SELECT statement in SQL Server 2005 which does the following computa… Read more Sql Server 2005: Arithmetic With Dates

I have a SQL line that looks like this ,SUM(Unit_Retail) OVER (PARTITION BY CASE WHEN @LocalDetailL… Read more How To Make This Sql Line More Efficient? (case When In Partition By)

So i'm having a bit of trouble to figure out how i could make this work so that i can append th… Read more Sql Appending To Query Output

We have a bit of a SQL quandry. Say I have a results that look like this... 61E77D90-D53D-4E2E-A09… Read more Sql 2005 Merge / Concatenate Multiple Rows To One Column

I have three tables: user, request and message. I would like to get something like the thread list … Read more Mysql - Query For Thread List Of Messages With Specific Conditions

I want to create a calculated column based on a shared column but the calculated column should '… Read more Create Identifier/counter Based On Some Shared Columns And Seperate Based On Other Columns

consider the following data: category | index | value ------------------------- cat 1 | 1 | … Read more Select Nearest Neighbours

I have two tables, tempUsers and tempItems. These two tables have a one to many relationship. When… Read more Sql Server 2008 Row To Column

I have created a subquery as follows select hospital.hospitalcode, name, wardno, annualbudget from … Read more Sql Sub-query - How To Find A Min Value

I was stuck with the following situation: My entities are related to each other, but in such a way … Read more Jpa Data Repositories With Sqlresultsetmapping And Native Queries

What I am trying to do is retrieve an ArrayList from another database manager class. Unfortunately … Read more How To Use A Get Method For A Sqlite Database Management Class In Another Class?

If I have a MySQL query like: SELECT this FROM that WHERE id='10' and SELECT this FROM tha… Read more Single Quotes In Mysql Queries

My SCHEMA is the following and I have ~ 4m existing posts in the DB that I need to update. I am add… Read more How To Efficiently Update Postgres Using A Tuple Of The Pk And A Value?