REPLACE() 函數 (SQL REPLACE() Function) REPLACE() 函數用來以新字串取代原字串內容。 REPLACE() 語法 (SQL REPLACE() Syntax) SELECTREPLACE(str, from_str, to_str)FROMtable_name; 函數意義為,在字串 str 中,將所有字串 from_str,取代為字串 to
Let's look at some Oracle REPLACE function examples and explore how to use the REPLACE function in Oracle/PLSQL. For example: REPLACE('123123tech', '123');Result:'tech' REPLACE('123tech123', '123');Result:'tech' REPLACE('222tech', '2', '3');Result:'333tech' REPLACE('0000123', ...
SELECTREPLACE('This is a Test'COLLATELatin1_General_BIN,'Test','desk'); GO Here is the result set. --- This is a desk (1 row(s) affected) The following example calculates the number of spaces in a sentence using theREPLACEfunction. First, it calculates the length of the sentence wit...
CREATE OR REPLACE PACKAGE overload IS FUNCTION get_sal(eno NUMBER) RETURN NUMBER; FUNCTION get_sal(name VARCHAR2) RETURN NUMBER; PROCEDURE fire_employee(eno NUMBER); PROCEDURE fire_employee(name VARCHAR2); END; 二、创建重载特性的包体 对于包中具有重载特性的函数或过程,需要依次对其创建不同的包体,...
Command> CREATE OR REPLACE FUNCTION get_emp (p_emp_id NUMBER) > RETURN employees%ROWTYPE IS > v_stmt VARCHAR2 (200); > v_emprec employees%ROWTYPE; > BEGIN > v_stmt:= 'SELECT * FROM EMPLOYEES '|| > 'WHERE employee_id = :p_emp_id'; > EXECUTE IMMEDIATE v_stmt INTO v_emprec...
-- an example function which updates a hypothetical -- event_responses table which itself is distributed by event_id CREATE OR REPLACE FUNCTION register_for_event(p_event_id int, p_user_id int) RETURNS void LANGUAGE plpgsql AS $fn$ BEGIN INSERT INTO event_responses VALUES ($1, $2, 'yes...
The following example calculates the number of spaces in a sentence using the REPLACE function. First, it calculates the length of the sentence with the LEN function. It then replaces the ' ' characters with '' with REPLACE. After this process, it calculates the length of the sentence again...
SELECTREPLACE('This is a Test'COLLATELatin1_General_BIN,'Test','desk'); GO Here's the result set. --- This is a desk (1 row(s) affected) The following example calculates the number of spaces in a sentence using theREPLACEfunction. First, it calculates the length of the sentence with...
Command> CREATE OR REPLACE FUNCTION get_emp (p_emp_id NUMBER) RETURN employees%ROWTYPE IS v_stmt VARCHAR2 (200); v_emprec employees%ROWTYPE; BEGIN v_stmt:= 'SELECT * FROM EMPLOYEES '|| 'WHERE employee_id = :p_emp_id'; EXECUTE IMMEDIATE v_stmt INTO v_emprec USING p_emp_id; RE...
The following example calculates the number of spaces in a sentence using the REPLACE function. First, it calculates the length of the sentence with the LEN function. It then replaces the ' ' characters with '' with REPLACE. After this process, it calculates the length of the sentence again...