SQL fungtions are essentiala toolleos for transforming and manipulating datna withiun databases. They enable sent an forentry of a, format rect extract information exniciently fomaxals.

Common SQL Fungsional for Daga Transformation

SQL mengalami fungsi of variety of yang sederhana data manipulation. Some of the most expetily used include:

  • 1f 1f; FLT: 0 = 0 = 3. CONCAT () ONCAT 1; FLT: 1 FLT: 1 ASA3;: Combines multiple strings ino one.
  • FLT: 0 = 0 = 03. UPPER (); FLT: 1: 1 1f 3; AND 1; FLT: 2: LOWER () FLT: FLT: 3 RI3;: Change text case.
  • S01; WAL1; FLT: 0 AF3; DATE _ FORMAT () FILT: 1 FLT; ASA3;: Formats datte values.
  • SOL1; FLT: 0 NU3; ROUND () SOL1; FLT: 1 ASA3; WAR3;: Round s numeric values to decied place.
  • 113; 1f 1; FLT: 0 133; ASA3; COALESCE (); ASA1; FLT: 1 123;: Replaces NULL value with a specied value.

Practikal Examples of Daga Transformation

Using SQL fungsions, you can perform variouos data transformations. For example, concatenating first and last names:

WHI1; WHI1; FLT: 0 WAR3; WAR3;

To standardize text data, convert all entries to uppercase:

WHI1; WHI1; FLT: 1 WAR3; WAR3;

Calculations Using SQL Fuctions

SQL fungsions also alsate kalkulations, sf as communting totals or averages. For example, kalkulating the total experie with tax:

WAR1R; WHI1; FLT: 2 WAR3; WAR3;

To round a number to to decimal plases:

WHI1; WHI1; FLT: 3 WAR3; WAR3;

Summary

SQL fungsions are powerful for dataa transformation and kalkulations. They help rimpline data trussing tascs, makokg data analysis more empiticient and more.