https://github.com/mrkem598/sql-functions
SQL functions are built into Oracle and are available for use in various appropriate SQL statements. You can also create your own function using PL/SQL.
https://github.com/mrkem598/sql-functions
avg max mod oracle-11g sql sql-functions sqrt truncate
Last synced: 3 months ago
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SQL functions are built into Oracle and are available for use in various appropriate SQL statements. You can also create your own function using PL/SQL.
- Host: GitHub
- URL: https://github.com/mrkem598/sql-functions
- Owner: mrkem598
- License: apache-2.0
- Created: 2017-12-10T02:38:09.000Z (over 8 years ago)
- Default Branch: master
- Last Pushed: 2020-01-18T02:25:42.000Z (about 6 years ago)
- Last Synced: 2025-02-03T12:53:15.217Z (about 1 year ago)
- Topics: avg, max, mod, oracle-11g, sql, sql-functions, sqrt, truncate
- Homepage: https://mrkem598.github.io/SQL-FUNCTIONS/
- Size: 930 KB
- Stars: 0
- Watchers: 1
- Forks: 1
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
***
# SQL FUNCTIONS
***
SQL functions are built into Oracle and are available for use in various appropriate SQL statements. You can also create your own function using PL/SQL.
***
# Single-Row Functions
***
Single-row functions return a single result row for every row of a queried table or view. These functions can appear in select lists, WHERE clauses, START WITH and CONNECT BY clauses, and HAVING clauses.
***
# Oracle SQL Functions can be divided into following categories
***
• Number Functions
• Character Functions
• Miscellaneous Single Row Functions
• Aggregate Functions
• Date and Time Functions
***
# Here are the explanation and example of these functions
***
Number Functions (also known as Math Functions)
Number functions accept numeric input and return numeric values. Most of these functions return values that are accurate to 38 decimal digits.
***
# The number functions available in Oracle are:
***
ABS ACOS ASIN ATAN ATAN2 BITAND CEIL COS COSH EXP FLOOR LN LOG
MOD POWER ROUND (number) SIGN SIN SINH SQRT TAN TANH TRUNC (number)
***
# ABS
***
ABS returns the absolute value of n.
The following example returns the absolute value of -87:
SELECT ABS(-87) "Absolute" FROM DUAL;
Absolute
----------
87
***
# ACOS
***
ACOS returns the arc cosine of n. Inputs are in the range of -1 to 1, and outputs are in the range of 0 to pi and are expressed in radians.
The following example returns the arc cosine of .3:
SELECT ACOS(.3)"Arc_Cosine" FROM DUAL;
Arc_Cosine
----------
1.26610367
Similar to ACOS, you have ASIN (Arc Sine), ATAN (Arc Tangent) functions.
***
# CIEL
***
Returns the lowest integer above the given number.
Example:
The following function return the lowest integer above 3.456;
select ciel(3.456) “Ciel” from dual;
Ciel
---------
4
***
# FLOOR
***
Returns the highest integer below the given number.
Example:
The following function return the highest integer below 3.456;
select floor(3.456) “Floor” from dual;
Floor
------------
3
***
# COS
***
Returns the cosine of an angle (in radians).
Example:
The following example returns the COSINE angle of 60 radians.
select cos(60) “Cosine” from dual;
***
# SIN
***
Returns the Sine of an angle (in radians).
Example:
The following example returns the SINE angle of 60 radians.
select SIN(60) “Sine” from dual;
***
# TAN
***
Returns the Tangent of an angle (in radians).
Example:
The following example returns the tangent angle of 60 radians.
select Tan(60) “Tangent” from dual;
Similar to SIN, COS, TAN functions hyperbolic functions SINH, COSH, TANH are also available in oracle.
***
# MOD
***
Returns the remainder after dividing m with n.
Example
The following example returns the remainder after dividing 30 by 4.
Select mod(30,4) “MOD” from dual;
MOD
---------
2
***
# POWER
***
Returns the power of m, raised to n.
Example
The following example returns the 2 raised to the power of 3.
select power(2,3) “Power” from dual;
POWER
---------
8
***
# EXP
***
Returns the e raised to the power of n.
Example
The following example returns the e raised to power of 2.
select exp(2) “e raised to 2” from dual;
E RAISED TO 2
-------------
***
# LN
***
Returns natural logarithm of n.
Example
The following example returns the natural logarithm of 2.
select ln(2) from dual;
LN
------------
# LOG
Returns the logarithm, base m, of n.
Example
The following example returns the log of 100.
select log(10,100) from dual;
LOG
---------
2
# ROUND
Returns a decimal number rounded of to a given decimal positions.
Example
The following example returns the no. 3.4573 rounded to 2 decimals.
select round(3.4573,2) “Round” from dual;
Round
------------
3.46
# TRUNC
Returns a decimal number Truncated to a given decimal positions.
Example
The following example returns the no. 3.4573 truncated to 2 decimals.
select round(3.4573,2) “Round” from dual;
Round
------------
3.45
# SQRT
Returns the square root of a given number.
Example: The following example returns the square root of 16.
select sqrt(16) from dual;
SQRT
---------
4
