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Should I Call The Database Connection Setup In Each Method Or Just Once In Constructor

Should I Call The Database Connection Setup In Each Method Or Just Once In Constructor

I'm working on a small project in Java and I have got DatabaseController class which contains many methods to inser…

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Update Statement Not Generating Syntax Error When Using And Instead Of Comma

Update Statement Not Generating Syntax Error When Using And Instead Of Comma

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I was browsing on MySQL Documentation about the update. See UPDATE Syntax. I found out that the syn… Read more Update Statement Not Generating Syntax Error When Using And Instead Of Comma
Insert String's Each Values Into A Single Column

Insert String's Each Values Into A Single Column

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Here I want to insert the complete string each values into a column. For which I have written the f… Read more Insert String's Each Values Into A Single Column
Give Permissions To A Stored Procedure

Give Permissions To A Stored Procedure

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I have a stored procedure that does a merge into a table. Let's call it someSchema.UpsertSomeSt… Read more Give Permissions To A Stored Procedure
What Data Type Does The Sqlcommand Method Executescalar() Return?

What Data Type Does The Sqlcommand Method Executescalar() Return?

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In SQL Server, ID is a not null integer, and an identity. When I run the following code, I get an… Read more What Data Type Does The Sqlcommand Method Executescalar() Return?
Sequel Gem Increment

Sequel Gem Increment

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I am trying to use the Ruby Sequel gem for DB operations. I am stuck for incrementing and decrement… Read more Sequel Gem Increment
Convert Sql Query With Subquery To Laravel Query

Convert Sql Query With Subquery To Laravel Query

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Is it possible to convert my SQL Query to Laravel 4 Query SQL: SELECT Branch_tbl.ID, Branch_tbl… Read more Convert Sql Query With Subquery To Laravel Query
Delete Records Which Are Considered Duplicates Based On Same Value On A Column And Keep The Newest

Delete Records Which Are Considered Duplicates Based On Same Value On A Column And Keep The Newest

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I would like to delete records which are considered duplicates based on them having the same value … Read more Delete Records Which Are Considered Duplicates Based On Same Value On A Column And Keep The Newest
Matrix Multiplication In Python And Mysql

Matrix Multiplication In Python And Mysql

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I have a currency exchange dictionary, as follows: exchange_rates = {'USD': 1.00000, … Read more Matrix Multiplication In Python And Mysql
Sqlite3 Activerecord :order => "time Desc" Doesn't Sort

Sqlite3 Activerecord :order => "time Desc" Doesn't Sort

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rails 2.3.4, sqlite3 I'm trying this Production.find(:all, :conditions => ['time > ?… Read more Sqlite3 Activerecord :order => "time Desc" Doesn't Sort
Array Not Being Returned By Select Query Inside Plpgsql Test Case

Array Not Being Returned By Select Query Inside Plpgsql Test Case

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SELECT query I am using: SELECT ARRAY[table_name,pg_size_pretty(table_size)] FROM ( SELECT … Read more Array Not Being Returned By Select Query Inside Plpgsql Test Case
Dynamic Table Name With Entity Framework

Dynamic Table Name With Entity Framework

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I have many tables with the same model structure but with other table names with other data (in thi… Read more Dynamic Table Name With Entity Framework
Need Lambda Expression Orderby With Datetime Conversion

Need Lambda Expression Orderby With Datetime Conversion

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I am trying to create a lambda expression (Linq, C# 3.5) that can perform a OrderBy on a value that… Read more Need Lambda Expression Orderby With Datetime Conversion
Group By And Stuff Combined Result In Sql Server

Group By And Stuff Combined Result In Sql Server

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I referred the this LINK but when I try to use the same format I am confused whether I have to use … Read more Group By And Stuff Combined Result In Sql Server
Solution To Avoid Double-hop From Client > Web Service > Sql Server

Solution To Avoid Double-hop From Client > Web Service > Sql Server

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My project invoves a user connecting from client to web service, and then web service to SQL Server… Read more Solution To Avoid Double-hop From Client > Web Service > Sql Server
Sql Join Only If All Records Have A Match

Sql Join Only If All Records Have A Match

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I have 3 tables: CP_carthead (idOrder) CP_cartrows (idOrder, idCartRow) CP_shipping (idCartRow, i… Read more Sql Join Only If All Records Have A Match
Longest Prefix Match In Sql Server 2000

Longest Prefix Match In Sql Server 2000

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I have 2 tables. lets just say its records and numbers the records.number contains a number which I… Read more Longest Prefix Match In Sql Server 2000
Start The First Day Of The Week As Sunday In Sql

Start The First Day Of The Week As Sunday In Sql

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I want my first day of the week to be as Sunday but my issue with my code is that it starts always … Read more Start The First Day Of The Week As Sunday In Sql
How To Add Blank Rows When Select Query Sql

How To Add Blank Rows When Select Query Sql

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Example : when I type : select number, city from user The results in the get is 3 rows. How to … Read more How To Add Blank Rows When Select Query Sql
How To Iterate Through An Sql Table Which "parent" And Child" Rows Are In Same Table

How To Iterate Through An Sql Table Which "parent" And Child" Rows Are In Same Table

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In a table there are the columns ID, Title and ParentID. ParentID is used for the ID of the entry i… Read more How To Iterate Through An Sql Table Which "parent" And Child" Rows Are In Same Table