MySQL Tutorial/String Functions/INSERT

INSERT("ABCDEFG", "ZZZ");

mysql>
mysql>
mysql> SELECT INSERT("ABCDEFG", -1, 4, "ZZZ");
+---------------------------------+
| INSERT("ABCDEFG", -1, 4, "ZZZ") |
+---------------------------------+
| ABCDEFG                         |
+---------------------------------+
1 row in set (0.00 sec)
mysql>

INSERT("ABCDEFG", 3, 100, "ZZZ");

mysql>
mysql>
mysql> SELECT INSERT("ABCDEFG", 3, 100, "ZZZ");
+----------------------------------+
| INSERT("ABCDEFG", 3, 100, "ZZZ") |
+----------------------------------+
| ABZZZ                            |
+----------------------------------+
1 row in set (0.00 sec)
mysql>

INSERT(str,pos,len,newstr): Replaces the string str with the substring beginning at position pos and len characters long replaced by the string newstr

Returns the original string if pos is not within the length of the string.

Replaces the rest of the string from position pos if len is not within the length of the rest of the string.

Returns NULL if any argument is NULL.

mysql>
mysql> SELECT INSERT("ABCDEFG", 3, 4, "ZZZ");
+--------------------------------+
| INSERT("ABCDEFG", 3, 4, "ZZZ") |
+--------------------------------+
| ABZZZG                         |
+--------------------------------+
1 row in set (0.00 sec)
mysql>

Use Insert function to insert text to the first_name

mysql>
mysql>
mysql>
mysql> CREATE TABLE Employee(
    ->     id            int,
    ->     first_name    VARCHAR(15),
    ->     last_name     VARCHAR(15),
    ->     start_date    DATE,
    ->     end_date      DATE,
    ->     salary        FLOAT(8,2),
    ->     city          VARCHAR(10),
    ->     description   VARCHAR(15)
    -> );
Query OK, 0 rows affected (0.02 sec)
mysql>
mysql>
mysql> insert into Employee(id,first_name, last_name, start_date, end_Date,   salary,  City,       Description)
    ->              values (1,"Jason",    "Martin",  "19960725",  "20060725", 1234.56, "Toronto",  "Programmer");
Query OK, 1 row affected (0.02 sec)
mysql>
mysql> insert into Employee(id,first_name, last_name, start_date, end_Date,   salary,  City,       Description)
    ->               values(2,"Alison",   "Mathews",  "19760321", "19860221", 6661.78, "Vancouver","Tester");
Query OK, 1 row affected (0.00 sec)
mysql>
mysql> insert into Employee(id,first_name, last_name, start_date, end_Date,   salary,  City,       Description)
    ->               values(3,"James",    "Smith",    "19781212", "19900315", 6544.78, "Vancouver","Tester");
Query OK, 1 row affected (0.01 sec)
mysql>
mysql> insert into Employee(id,first_name, last_name, start_date, end_Date,   salary,  City,       Description)
    ->               values(4,"Celia",    "Rice",     "19821024", "19990421", 2344.78, "Vancouver","Manager");
Query OK, 1 row affected (0.00 sec)
mysql>
mysql> insert into Employee(id,first_name, last_name, start_date, end_Date,   salary,  City,       Description)
    ->               values(5,"Robert",   "Black",    "19840115", "19980808", 2334.78, "Vancouver","Tester");
Query OK, 1 row affected (0.00 sec)
mysql>
mysql> insert into Employee(id,first_name, last_name, start_date, end_Date,   salary,  City,       Description)
    ->               values(6,"Linda",    "Green",    "19870730", "19960104", 4322.78,"New York",  "Tester");
Query OK, 1 row affected (0.00 sec)
mysql>
mysql> insert into Employee(id,first_name, last_name, start_date, end_Date,   salary,  City,       Description)
    ->               values(7,"David",    "Larry",    "19901231", "19980212", 7897.78,"New York",  "Manager");
Query OK, 1 row affected (0.00 sec)
mysql>
mysql> insert into Employee(id,first_name, last_name, start_date, end_Date,   salary,  City,       Description)
    ->               values(8,"James",    "Cat",     "19960917",  "20020415", 1232.78,"Vancouver", "Tester");
Query OK, 1 row affected (0.00 sec)
mysql>
mysql> select * from Employee;
+------+------------+-----------+------------+------------+---------+-----------+-------------+
| id   | first_name | last_name | start_date | end_date   | salary  | city      | description |
+------+------------+-----------+------------+------------+---------+-----------+-------------+
|    1 | Jason      | Martin    | 1996-07-25 | 2006-07-25 | 1234.56 | Toronto   | Programmer  |
|    2 | Alison     | Mathews   | 1976-03-21 | 1986-02-21 | 6661.78 | Vancouver | Tester      |
|    3 | James      | Smith     | 1978-12-12 | 1990-03-15 | 6544.78 | Vancouver | Tester      |
|    4 | Celia      | Rice      | 1982-10-24 | 1999-04-21 | 2344.78 | Vancouver | Manager     |
|    5 | Robert     | Black     | 1984-01-15 | 1998-08-08 | 2334.78 | Vancouver | Tester      |
|    6 | Linda      | Green     | 1987-07-30 | 1996-01-04 | 4322.78 | New York  | Tester      |
|    7 | David      | Larry     | 1990-12-31 | 1998-02-12 | 7897.78 | New York  | Manager     |
|    8 | James      | Cat       | 1996-09-17 | 2002-04-15 | 1232.78 | Vancouver | Tester      |
+------+------------+-----------+------------+------------+---------+-----------+-------------+
8 rows in set (0.00 sec)
mysql>
mysql>
mysql> SELECT INSERT(first_name,5,5,"AAA")
    -> FROM employee;
+------------------------------+
| INSERT(first_name,5,5,"AAA") |
+------------------------------+
| JasoAAA                      |
| AlisAAA                      |
| JameAAA                      |
| CeliAAA                      |
| RobeAAA                      |
| LindAAA                      |
| DaviAAA                      |
| JameAAA                      |
+------------------------------+
8 rows in set (0.00 sec)
mysql>
mysql> drop table Employee;
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql>