SQL Server/T-SQL Tutorial/Data Types/FULLTEXT — различия между версиями

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Текущая версия на 13:25, 26 мая 2010

Creating a Full-Text Index

   <source lang="sql">

USE YourDatabase GO CREATE FULLTEXT CATALOG cat_YourName CREATE FULLTEXT INDEX ON MyDocumentTable (DocumentSummary, Document TYPE COLUMN FileExtension) KEY INDEX PK_DocumentID ON cat_Document WITH CHANGE_TRACKING AUTO</source>


Dropping a Full-Text Index

   <source lang="sql">

DROP FULLTEXT INDEX ON MyDocument</source>


Modifying a Full-Text Index

   <source lang="sql">

ALTER FULLTEXT INDEX ON MyDocument ADD (Title) ALTER FULLTEXT INDEX ON MyDocument START FULL POPULATION ALTER FULLTEXT INDEX ON MyDocument SET CHANGE_TRACKING OFF ALTER FULLTEXT INDEX ON MyDocument DROP (Title)</source>


Using FREETEXT to Search Full-Text Indexed Columns

   <source lang="sql">

3> 4> CREATE TABLE employee( 5> id INTEGER NOT NULL PRIMARY KEY, 6> first_name VARCHAR(10), 7> last_name VARCHAR(10), 8> salary DECIMAL(10,2), 9> start_Date DATETIME, 10> region VARCHAR(10), 11> city VARCHAR(20), 12> managerid INTEGER 13> ); 14> GO 1> INSERT INTO employee VALUES (1, "Jason" , "Martin", 5890,"2005-03-22","North","Vancouver",3); 2> GO (1 rows affected) 1> INSERT INTO employee VALUES (2, "Alison", "Mathews",4789,"2003-07-21","South","Utown",4); 2> GO (1 rows affected) 1> INSERT INTO employee VALUES (3, "James" , "Smith", 6678,"2001-12-01","North","Paris",5); 2> GO (1 rows affected) 1> INSERT INTO employee VALUES (4, "Celia" , "Rice", 5567,"2006-03-03","South","London",6); 2> GO (1 rows affected) 1> INSERT INTO employee VALUES (5, "Robert", "Black", 4467,"2004-07-02","East","Newton",7); 2> GO (1 rows affected) 1> INSERT INTO employee VALUES (6, "Linda" , "Green" , 6456,"2002-05-19","East","Calgary",8); 2> GO (1 rows affected) 1> INSERT INTO employee VALUES (7, "David" , "Larry", 5345,"2008-03-18","West","New York",9); 2> GO (1 rows affected) 1> INSERT INTO employee VALUES (8, "James" , "Cat", 4234,"2007-07-17","West","Regina",9); 2> GO (1 rows affected) 1> INSERT INTO employee VALUES (9, "Joan" , "Act", 6123,"2001-04-16","North","Toronto",10); 2> GO (1 rows affected) 1> 2> select * from employee; 3> GO id first_name last_name salary start_Date region city managerid


---------- ---------- ------------ ----------------------- ---------- -------------------- -----------
         1 Jason      Martin          5890.00 2005-03-22 00:00:00.000 North      Vancouver                      3
         2 Alison     Mathews         4789.00 2003-07-21 00:00:00.000 South      Utown                          4
         3 James      Smith           6678.00 2001-12-01 00:00:00.000 North      Paris                          5
         4 Celia      Rice            5567.00 2006-03-03 00:00:00.000 South      London                         6
         5 Robert     Black           4467.00 2004-07-02 00:00:00.000 East       Newton                         7
         6 Linda      Green           6456.00 2002-05-19 00:00:00.000 East       Calgary                        8
         7 David      Larry           5345.00 2008-03-18 00:00:00.000 West       New York                       9
         8 James      Cat             4234.00 2007-07-17 00:00:00.000 West       Regina                         9
         9 Joan       Act             6123.00 2001-04-16 00:00:00.000 North      Toronto                       10

(9 rows affected) 1> 2> ALTER FULLTEXT INDEX ON Employee 3> ADD (First_Name) 4> GO Msg 7609, Level 17, State 104, Server BCE67B1242DE45A\SQLEXPRESS, Line 2 Full-Text Search is not installed, or a full-text component cannot be loaded. 1> 2> SELECT ID 3> FROM Employee 4> WHERE FREETEXT (First_Name, "c" ) 5> GO Msg 7601, Level 16, State 2, Server BCE67B1242DE45A\SQLEXPRESS, Line 2 Cannot use a CONTAINS or FREETEXT predicate on table or indexed view "Employee" because it is not full-text indexed. 1> 2> 3> drop table employee; 4> GO 1></source>