Build React Native App (4) - Redux, Jest, and NativeBase

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From this blog, typescript feature will be added. There are couple of ways to implement static type checking like; flow from facebook, PropTypes and Typescript. Typescript is well integrated with Visual Studio Code and supports better linter, error messages, and intellisense. Reference site Github Sample Ex4 Currnet version D:\GitRepo\reactnative>npm --version 6.3.0 D:\GitRepo\reactnative>react-native --version react-native-cli: 2.0.1 react-native: n/a - not inside a React Native project directory D:\GitRepo\reactnative>yarn --version 1.9.4 Creating React Native App $ react-native init ex4 If you want to specify the version, add "--version 0.57.3" at the end. Add NativeBase to React Native $ npm install native-base --save ... + native-base@2.8.1 added 71 packages from 42 contributors, removed 50 packages, updated 829 packages and audited 34989 packages in 138.542s found 0 vulnerabilities $ $ yarn yarn install v1.9.4 warning package-lock.json found. You
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SQL Query to show new record from duplicate

There are so many ways to implement this, but I am going to explain two methods for this topic. One is using with Partition and the another is using Group by

Using Partition

SELECT *
FROM 
(
    SELECT  itemcode, HID,
CASE  FreeTextField_02
 WHEN 'Block' THEN 'B'
 WHEN 'Unblock' THEN 'A'  
END as ItemStatus , 
        ROW_NUMBER() OVER (PARTITION BY itemcode ORDER BY syscreated DESC) AS RowNo
    FROM [Synergy].[dbo].[Absences]
    WHERE TYPE=1017 and 
syscreated >= CONVERT(DATE, Getdate())
) x
WHERE x.RowNo = 1

One of drawback of this implementation is that if you want to create this as view, there will be complaining due to "Order By" clause. 

Using Group By


SELECT  itemcode, HID,
CASE  FreeTextField_02
 WHEN 'Block' THEN 'B'
 WHEN 'Unblock' THEN 'A'  
END as ItemStatus
FROM [Synergy].[dbo].[Absences]
    WHERE HID in (select max(HID) from [Synergy].[dbo].[Absences] where TYPE=1017 and 
syscreated >= CONVERT(DATE, Getdate()) group by itemcode)

Personally, I like this approach and this can be used any sql product. Using MAX function, get the latest modified identifiers and show records from the filtered data.

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