SQL Server/T-SQL Tutorial/String Functions/STUFF

Stuffing a String into a String

4>
5> SELECT STUFF ( "www.sqle.ru""s name is sqle. ",
6> 8,
7> 1,
8> "Edgar" )
9> GO
-------------------------------------
www.javEdgar2s.ru"s name is sqle.
(1 rows affected)
1>

STUFF(notes, PATINDEX("%computer[^s]%", notes),

4> CREATE TABLE titles(
5>    title_id       varchar(20),
6>    title          varchar(80)       NOT NULL,
7>    type           char(12)          NOT NULL,
8>    pub_id         char(4)               NULL,
9>    price          money                 NULL,
10>    advance        money                 NULL,
11>    royalty        int                   NULL,
12>    ytd_sales      int                   NULL,
13>    notes          varchar(200)          NULL,
14>    pubdate        datetime          NOT NULL
15> )
16> GO
1>
2> insert titles values ("1", "Secrets",   "popular_comp", "1389", $20.00, $8000.00, 10, 4095,"Note 1","06/12/94")
3> insert titles values ("2", "The",       "business",     "1389", $19.99, $5000.00, 10, 4095,"Note 2","06/12/91")
4> insert titles values ("3", "Emotional", "psychology",   "0736", $7.99,  $4000.00, 10, 3336,"Note 3","06/12/91")
5> insert titles values ("4", "Prolonged", "psychology",   "0736", $19.99, $2000.00, 10, 4072,"Note 4","06/12/91")
6> insert titles values ("5", "With",      "business",     "1389", $11.95, $5000.00, 10, 3876,"Note 5","06/09/91")
7> insert titles values ("6", "Valley",    "mod_cook",     "0877", $19.99, $0.00,    12, 2032,"Note 6","06/09/91")
8> insert titles values ("7", "Any?",      "trad_cook",    "0877", $14.99, $8000.00, 10, 4095,"Note 7","06/12/91")
9> insert titles values ("8", "Fifty",     "trad_cook",    "0877", $11.95, $4000.00, 14, 1509,"Note 8","06/12/91")
10> GO
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)

1> UPDATE titles
2> SET notes=STUFF(notes, PATINDEX("%computer[^s]%", notes),
3>     DATALENGTH("computer"), "Hi-Tech Computers")
4> WHERE PATINDEX("%computer[^s]%", notes) > 0
5> GO
(0 rows affected)
1>
2>
3> drop table titles;
4> GO

The syntax for STUFF is STUFF(string_used_as_basis, start_point, length, string_to_insert)

5>
6> SELECT STUFF("ABCDEFGHIJKL",2,3,"sho")
7> GO
------------
AshoEFGHIJKL
(1 rows affected)