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Snippet Name: Date Functions: EXTRACT

Description: Extracts and returns the value of a specified datetime field from a datetime or interval value expression.

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» FUNCTIONS: Recompile
» FUNCTIONS: DEBUG mode
» FUNCTIONS: IN OUT parameter
» FUNCTIONS: with output parameters
» FUNCTIONS: with parameters
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» FUNCTIONS: Create function
» FUNCTIONS: special restrictions
» FUNCTIONS: System Privileges
» Recursive fopen() function
» INDEXES: ENABLE (function-based index)
» INDEXES: DISABLE (function-based index)
» PACKAGES: one function
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» IN Function
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» Alternate Title Case function
» SELECT: Using Functions
» UPDATE: Update a partitioned table
» UPDATE: Update based on a record

Comment: (none)

Language: PL/SQL
Highlight Mode: PLSQL
Last Modified: March 03rd, 2009

-- Values That Can Be Extracted:
 
-- YEAR
-- MONTH
-- DAY
-- HOUR
-- MINUTE
-- SECOND
-- TIMEZONE_HOUR
-- TIMEZONE_MINUTE
-- TIMEZONE_REGION
-- TIMEZONE_ABBR
 
EXTRACT (<type> FROM <datetime | interval>)
SELECT EXTRACT(YEAR FROM DATE '2005-01-04') FROM dual;
 
CREATE TABLE extract_test (
person_id   NUMBER(3),
hire_date   TIMESTAMP WITH TIME ZONE)
TABLESPACE data_sml;
 
INSERT INTO extract_test VALUES (100, SYSTIMESTAMP+1);
INSERT INTO extract_test VALUES (200, SYSTIMESTAMP+34);
 
SELECT EXTRACT(TIMEZONE_HOUR FROM hire_date)
FROM extract_test


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