The **SQRT** function is an inbuilt function in PLSQL which is used to return the square root of the given input number.

**Syntax:**

SQRT( number )

**Parameters Used:**

This function accepts a parameters which are illustrated below:

**number –** This is the input number whose square root is going to be calculated.

**Return Value:**

This function returns a numeric number which is square root of the given input number.

**Supported Versions of Oracle/PLSQL is given below:**

- Oracle 12c
- Oracle 11g
- Oracle 10g
- Oracle 9i
- Oracle 8i

Let’s see some examples which illustrate the SQRT function:

**Example-1:**

DECLARE Test_Number number := 25; BEGIN dbms_output.put_line(SQRT(Test_Number number)); END;

**Output:**

5

In the above example, 5 is the square root of 25.

**Example-2:**

DECLARE Test_Number number := 5.617; BEGIN dbms_output.put_line(SQRT(Test_Number number)); END;

**Output:**

2.37002109695251

In the above example, 2.37002109695251 is the square root of 5.617

**Example-3:**

DECLARE Test_Number number := 9; BEGIN dbms_output.put_line(SQRT(Test_Number number)); END;

**Output:**

3

In the above example, 3 is the square root of 9

**Advantage:**

This function is used to calculate the square root of the given input number.

## Recommended Posts:

- PLSQL | LOG Function
- PLSQL | INSTR Function
- PLSQL | INSTRB Function
- PLSQL | LENGTH2 Function
- PLSQL | SOUNDEX Function
- PLSQL | ASCII Function
- PLSQL | CONCAT Function
- PLSQL | COMPOSE Function
- PLSQL | CHR Function
- PLSQL | ASCIISTR Function
- PLSQL | CONVERT Function
- PLSQL | DECOMPOSE Function
- PLSQL | DUMP Function
- PLSQL | INITCAP Function
- PLSQL | LENGTHC Function
- PLSQL | LENGTHB Function
- PLSQL | LENGTH4 Function
- PLSQL | LENGTH Function
- PLSQL | LPAD Function
- PLSQL | INSTRC Function

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