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Bambance-bambance tsakanin MySQL, PostgreSQL, Oracle da SQL Server

Bambance-bambance tsakanin nau'ikan bayanai na SQL kamar MySQL, PostgreSQL, Oracle, da SQL Server sun ta'allaka ne a cikin fasalulluka, aikinsu, goyan bayansu, da daidaitawar tambaya. Anan akwai bayyani na bambance-bambance da kuma yadda ake aiwatar da takamaiman tambayoyi ga kowane nau'in bayanai:

 

MySQL

  • MySQL sanannen tushen tushen bayanai ne da ake amfani da shi sosai a aikace-aikacen yanar gizo da kanana zuwa matsakaitan masana'antu.
  • Yana goyan bayan mafi mahimmancin fasalulluka na SQL kuma yana ba da kyakkyawan aiki don aikace-aikacen masu nauyi.
  • Maganar tambayar MySQL abu ne mai sauƙi kuma mai sauƙin fahimta.

Misali na takamaiman tambaya MySQL:

-- Retrieve data from the Employees table and sort by name  
SELECT * FROM Employees ORDER BY LastName, FirstName;

 

PostgreSQL

  • PostgreSQL babban tushen bayanai ne mai ƙarfi wanda ke goyan bayan manyan abubuwan ci gaba da yawa.
  • Ya zo tare da ginanniyar tallafi don JSON, lissafi, da bayanan yanki, da kuma hadaddun ayyuka.
  • Maganar tambayar PostgreSQL tana da sassauƙa da ƙarfi.

Misali na takamaiman tambaya ta PostgreSQL:

-- Retrieve data from the Orders table and calculate the total spent per customer  
SELECT CustomerID, SUM(TotalAmount) AS TotalSpent  
FROM Orders  
GROUP BY CustomerID;

 

Oracle

  • Oracle ingantaccen bayanai ne kuma ana amfani da shi sosai, galibi ana aiki dashi a manyan masana'antu da manyan aikace-aikace.
  • Yana ba da abubuwan haɗin kai don sarrafa hadaddun bayanan bayanai kuma yana goyan bayan harsuna da yawa da mahalli masu yawa.
  • Maganar tambaya ta Oracle tana da ɗan rikitarwa kuma yana iya buƙatar ƙwarewar ci gaba.

Misali na takamaiman tambayar Oracle:

-- Retrieve data from the Products table and calculate the average price of products  
SELECT AVG(UnitPrice) AS AveragePrice  
FROM Products;

 

SQL Server

  • QL Server shine tsarin sarrafa bayanai na Microsoft, wanda aka saba amfani dashi a cikin mahallin Windows da aikace-aikacen kasuwanci.
  • Yana ba da fasalulluka masu arziƙi, gami da haɗin bayanan XML, goyon bayan sararin samaniya da yanki, da ginanniyar ƙididdigar bayanai.
  • Maganar tambayar SQL Server tana kama da MySQL kuma mai sauƙin fahimta.

Misali na takamaiman tambayar SQL Server:

-- Retrieve data from the Customers table and filter by the 'North' geographic region  
SELECT * FROM Customers WHERE Region = 'North';

 

Kowane nau'in bayanan SQL yana da nasa fa'idodi da fa'idodi, kuma yadda ake aiwatar da takamaiman tambayoyi na iya bambanta. Zaɓin rumbun adana bayanai ya dogara da takamaiman buƙatun aikace-aikacen da abubuwan da ake buƙata.