SQL Server/T-SQL Tutorial/String Functions/RTRIM
Содержание
CONVERT(varchar(20), RTRIM(au_lname) + ", " + RTRIM(au_fname)
<source lang="sql">
5> CREATE TABLE authors( 6> au_id varchar(11), 7> au_lname varchar(40) NOT NULL, 8> au_fname varchar(20) NOT NULL, 9> phone char(12) NOT NULL DEFAULT ("UNKNOWN"), 10> address varchar(40) NULL, 11> city varchar(20) NULL, 12> state char(2) NULL, 13> zip char(5) NULL, 14> contract bit NOT NULL 15> ) 16> GO 1> insert authors values("1", "Joe", "Abra", "111 111-1111", "6 St.", "Berkeley", "CA", "11111", 1) 2> insert authors values("2", "Jack", "Majo", "222 222-2222", "3 St.", "Oakland" , "CA", "22222", 1) 3> insert authors values("3", "Pink", "Cherry", "333 333-3333", "5 Ln.", "Vancouver", "BC", "33333", 1) 4> insert authors values("4", "Blue", "Albert", "444 444-4444", "7 Av.", "Vancouver", "BC", "44444", 1) 5> insert authors values("5", "Red", "Anne", "555 555-5555", "6 Av.", "Regina", "SK", "55555", 1) 6> insert authors values("6", "Black", "Michel", "666 666-6666", "3 Pl.", "Regina", "SK", "66666", 1) 7> insert authors values("7", "White", "Sylvia", "777 777-7777", "1 Pl.", "Rockville", "MD", "77777", 1) 8> insert authors values("8", "Yellow","Heather","888 888-8888", "3 Pu", "Vacaville", "CA", "88888", 0) 9> insert authors values("9", "Gold", "Dep", "999 999-9999", "5 Av.", "Oakland", "CA", "99999", 0) 10> insert authors values("10", "Siler", "Dean", "000 000-0000", "4 Av.", "Oakland", "CA", "00000", 1) 11> 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 rows affected) (1 rows affected) 1> 2> 3> CREATE TABLE titleauthor( 4> au_id varchar(20), 5> title_id varchar(20), 6> au_ord tinyint NULL, 7> royaltyper int NULL 8> ) 9> GO 1> 2> insert titleauthor values("1", "2", 1, 60) 3> insert titleauthor values("2", "3", 1, 100) 4> insert titleauthor values("3", "4", 1, 100) 5> insert titleauthor values("4", "5", 1, 100) 6> insert titleauthor values("5", "6", 1, 100) 7> insert titleauthor values("6", "7", 2, 40) 8> insert titleauthor values("7", "8", 1, 100) 9> insert titleauthor values("8", "9", 1, 100) 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> 2> 3> 4> SELECT "Author ID"=A.au_id, 5> "Author"=CONVERT(varchar(20), RTRIM(au_lname) + ", " 6> + RTRIM(au_fname)), state 7> FROM authors A 8> WHERE A.au_id <> ALL 9> (SELECT B.au_id FROM titleauthor B) 10> GO Author ID Author state
-------------------- -----
9 Gold, Dep CA 10 Siler, Dean CA (2 rows affected) 1> 2> 3> SELECT "Author ID"=A.au_id, 4> "Author"=CONVERT(varchar(20), RTRIM(au_lname) + ", " 5> + RTRIM(au_fname)), state 6> FROM authors A 7> WHERE A.au_id NOT IN 8> (SELECT B.au_id FROM titleauthor B) 9> GO Author ID Author state
-------------------- -----
9 Gold, Dep CA 10 Siler, Dean CA (2 rows affected) 1> 2> 3> drop table authors; 4> drop table titleauthor; 5> GO 1></source>
Removing Trailing Blanks
<source lang="sql">
3> 4> SELECT RTRIM(""" + "www.sqle.ru sqle ") + """ 5> GO
"www.sqle.ru sqle" (1 rows affected) 1></source>
RTRIM a column
<source lang="sql">
2> CREATE TABLE titles( 3> title_id varchar(20), 4> title varchar(80) NOT NULL, 5> type char(12) NOT NULL, 6> pub_id char(4) NULL, 7> price money NULL, 8> advance money NULL, 9> royalty int NULL, 10> ytd_sales int NULL, 11> notes varchar(200) NULL, 12> pubdate datetime NOT NULL 13> ) 14> 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> 2> SELECT RTRIM(type) + ":" + title_id FROM titles 3> GO
popular_comp:1 business:2 psychology:3 psychology:4 business:5 mod_cook:6 trad_cook:7 trad_cook:8 (8 rows affected) 1> 2> drop table titles; 3> GO 1></source>
RTRIM will remove trailing spaces from a string.
<source lang="sql">
3> DECLARE @STRING_WITH_SPACES VARCHAR(30) 4> DECLARE @STRING_WITHOUT_SPACES VARCHAR(30) 5> SET @STRING_WITH_SPACES = "www.sqle.ru sqle" 6> 7> SET @STRING_WITHOUT_SPACES = RTRIM(@STRING_WITH_SPACES) 8> 9> SELECT @STRING_WITH_SPACES + "!" 10> SELECT @STRING_WITHOUT_SPACES + "!" 11> GO
www.sqle.ru sqle! (1 rows affected)
www.sqle.ru sqle! (1 rows affected)</source>
select LTRIM(RTRIM(" SQL Server "))
<source lang="sql">
3> select LTRIM(RTRIM(" SQL Server ")) 4> GO
SQL Server (1 rows affected) 1></source>
select RTRIM(" SQL Server ")
<source lang="sql">
3> select RTRIM(" SQL Server ") 4> GO
SQL Server
(1 rows affected) 1></source>
