PostgreSQL/String Functions/ltrim

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ltrim(name, " ")

   <source lang="sql">

postgres=# CREATE TABLE employee ( postgres(# ID int, postgres(# name varchar(10), postgres(# salary real, postgres(# start_date date, postgres(# city varchar(10), postgres(# region char(1) postgres(# ); CREATE TABLE postgres=# postgres=# insert into employee (ID, name, salary, start_date, city, region) postgres-# values (1, "Jason", 40420, "02/01/94", "New York", "W"); INSERT 0 1 postgres=# insert into employee (ID, name, salary, start_date, city, region) postgres-# values (2, "Robert",14420, "01/02/95", "Vancouver","N"); INSERT 0 1 postgres=# insert into employee (ID, name, salary, start_date, city, region) postgres-# values (3, "Celia", 24020, "12/03/96", "Toronto", "W"); INSERT 0 1 postgres=# insert into employee (ID, name, salary, start_date, city, region) postgres-# values (4, "Linda", 40620, "11/04/97", "New York", "N"); INSERT 0 1 postgres=# insert into employee (ID, name, salary, start_date, city, region) postgres-# values (5, "David", 80026, "10/05/98", "Vancouver","W"); INSERT 0 1 postgres=# insert into employee (ID, name, salary, start_date, city, region) postgres-# values (6, "James", 70060, "09/06/99", "Toronto", "N"); INSERT 0 1 postgres=# insert into employee (ID, name, salary, start_date, city, region) postgres-# values (7, "Alison",90620, "08/07/00", "New York", "W"); INSERT 0 1 postgres=# insert into employee (ID, name, salary, start_date, city, region) postgres-# values (8, "Chris", 26020, "07/08/01", "Vancouver","N"); INSERT 0 1 postgres=# insert into employee (ID, name, salary, start_date, city, region) postgres-# values (9, "Mary", 60020, "06/09/02", "Toronto", "W"); INSERT 0 1 postgres=# postgres=# select * from employee;

id |  name  | salary | start_date |   city    | region

+--------+--------+------------+-----------+--------
 1 | Jason  |  40420 | 1994-02-01 | New York  | W
 2 | Robert |  14420 | 1995-01-02 | Vancouver | N
 3 | Celia  |  24020 | 1996-12-03 | Toronto   | W
 4 | Linda  |  40620 | 1997-11-04 | New York  | N
 5 | David  |  80026 | 1998-10-05 | Vancouver | W
 6 | James  |  70060 | 1999-09-06 | Toronto   | N
 7 | Alison |  90620 | 2000-08-07 | New York  | W
 8 | Chris  |  26020 | 2001-07-08 | Vancouver | N
 9 | Mary   |  60020 | 2002-06-09 | Toronto   | W

(9 rows) postgres=# postgres=# SELECT name, ltrim(name, "JDL3ne ") FROM employee;

 name  | ltrim

+--------
Jason  | ason
Robert | Robert
Celia  | Celia
Linda  | inda
David  | avid
James  | ames
Alison | Alison
Chris  | Chris
Mary   | Mary

(9 rows) postgres=# postgres=# drop table employee; DROP TABLE postgres=#

      </source>
   
  


ltrim: trim string to the left

   <source lang="sql">

postgres=# postgres=# postgres=# CREATE TABLE money_example ( postgres(# money_cash money, postgres(# numeric_cash numeric(10,2)); CREATE TABLE postgres=# postgres=# INSERT INTO money_example VALUES ("$12.24", 12.24); INSERT 0 1 postgres=# postgres=# postgres=# SELECT money_cash, "$" || ltrim(to_char(numeric_cash, "9999.99")) postgres-# AS numeric_cashified postgres-# FROM money_example;

money_cash | numeric_cashified

+-------------------
    $12.24 | $12.24

(1 row) postgres=# postgres=# drop table money_example; DROP TABLE postgres=#

      </source>
   
  


ltrim(" whitespace example")

   <source lang="sql">

postgres=# SELECT ltrim(" whitespace example");

      ltrim

whitespace example

(1 row)

      </source>