Search for wildcard characters
HelloCan we use the wildcard search in Berkeley Java Edition. The joker that interests me is to search a text field that begin with the specific prefix. For example, in SQL query can find all text that start with the prefix "XML", by specifying the lookup key to be "XML %". Can it be done in Berkeley I if I use a Direct persistence layer?
Thank you
Samir
Samir,
If you search the forum for 'DPL query', you will find the wire this query is possible using DPL? which is the same kind of question. In particular, if you read the white paper recommended (http://www.oracle.com/technology/products/berkeley-db/pdf/performing%20queries%20in%20oracle%20berkeley%20db%20java%20edition.pdf) you can see an example of the query, that you ask the subject.
Kind regards
Linda
Tags: Database
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___________
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)
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Hi all
Oracle 11g sql developer 4.0 help
I am facing this challenge where Oracle text when it comes to searching for text that contains a special character.
What I've done so far with the help of http://www.orafaq.com/forum/t/162229/
"CREATE TABLE"SOS" COMPANY ".
(SELECT "COMPANY_ID" NUMBER (10,0) NOT NULL,)
VARCHAR2 (50 BYTE) "COMPANY."
VARCHAR2 (50 BYTE) "ADDRESS1"
VARCHAR2 (10 BYTE) "ADDRESS2"
VARCHAR2 (40 BYTE) 'CITY ',.
VARCHAR2 (20 BYTE) 'STATE ', HE SAID.
NUMBER (5.0) "ZIP".
) CREATION OF IMMEDIATE SEGMENT
PCTFREE, PCTUSED, INITRANS 40 10 1 MAXTRANS 255 NOCOMPRESS SLAUGHTER
STORAGE (INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645)
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS USER_TABLES DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT 1)
TABLESPACE 'USERS ';
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BEGIN
CTX_DDL. CREATE_PREFERENCE ("your_lexer", "BASIC_LEXER");
CTX_DDL. SET_ATTRIBUTE ("your_lexer", "' SKIPJOINS,"., @-"'); -to jump. , @ - ' symbols
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/
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output
company_name
1 LSG SOLUTIONS LLC
2 Properties@Oklahoma, LLC
only 2 rows back but must return 3
It helps if you post a copy and paste of effective enforcement of the full code, including the results. You posted an index of context with the query with catsearch, which requires a ctxcat index. You must be a context clue that you did not post and did not add your lexer to. The following table shows it returns all the lines of 3 as planned using either a with catsearch ctxcat index or a context index with contains, as long that you include the lexer in your create index. You must also be sure that the index is created, or synchronized after inserting or updating data.
Scott@ORCL >-version:
Scott@ORCL > SELECT banner version of v$.
BANNER
--------------------------------------------------------------------------------
Oracle Database 11 g Enterprise Edition Release 11.2.0.1.0 - 64 bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
AMT for 64-bit Windows: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
5 selected lines.
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Scott@ORCL > CREATE TABLE 'SOCIETY '.
2 ("COMPANY_ID" NUMBER (10,0) NULL NOT ACTIVATE,)
3 'COMPANY_NAME' VARCHAR2 (50 BYTE),
VARCHAR2 (50 BYTE) 4 "ADDRESS1"
5 "ADDRESS2" VARCHAR2 (10 BYTE),
VARCHAR2 (40 BYTE) 6 'CITY',
7 VARCHAR2 (20 BYTE) 'STATE ', HE SAID.
NUMBER (5.0) 8 'ZIP '.
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PCTFREE 10 10 PCTUSED 40 INITRANS, MAXTRANS NOCOMPRESS SLAUGHTER 1 255
11 STORAGE (INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645)
12 PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS USER_TABLES DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT 1)
TABLESPACE 13 "USERS."
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Scott@ORCL > START
2 insert in SOCIETY (COMPANY_ID, COMPANY_NAME, Address1, Address2, CITY, STATE, ZIP) values (1, 'LSG SOLUTIONS LLC', null, null, null, null, null);
3 insert in SOCIETY (COMPANY_ID, COMPANY_NAME, Address1, Address2, CITY, STATE, ZIP) values (2,' LOVE "S TRAVEL', null, null, null, null, null);
4 insert into SOCIETY (COMPANY_ID, COMPANY_NAME, Address1, Address2, CITY, STATE, ZIP) values (3, 'DEVON ENERGY', null, null, null, null, null);
5 insert into SOCIETY (COMPANY_ID, COMPANY_NAME, Address1, Address2, CITY, STATE, ZIP) values (4, 'SONIC INC', null, null, null, null, null);
6 insert in SOCIETY (COMPANY_ID, COMPANY_NAME, Address1, Address2, CITY, STATE, ZIP) values (5, "MSCI", null, null, null, null, null);
7 insert into SOCIETY (COMPANY_ID, COMPANY_NAME, Address1, Address2, CITY, STATE, ZIP) values (6, 'ERNEST AND YOUNG', null, null, null, null, null);
8 insert in SOCIETY (COMPANY_ID, COMPANY_NAME, Address1, Address2, CITY, STATE, ZIP) values (7, "JOHN DEER", null, null, null, null, null);
9 insert in SOCIETY (COMPANY_ID, COMPANY_NAME, Address1, Address2, CITY, STATE, ZIP) values (8,'Properties@Oklahoma, LLC', null, null, null, null, null);
10 insert into SOCIETY (COMPANY_ID, COMPANY_NAME, Address1, Address2, CITY, STATE, ZIP) values (9, 'D.D.T L.L.C.', null, null, null, null, null);
11 END;
12.
PL/SQL procedure successfully completed.
Scott@ORCL >-lexer:
Scott@ORCL > START
CTX_DDL 2. CREATE_PREFERENCE ("your_lexer", "BASIC_LEXER");
CTX_DDL 3. SET_ATTRIBUTE ("your_lexer", "' SKIPJOINS,"., @-"'); -to jump. , @ - ' symbols
4 END;
5.
PL/SQL procedure successfully completed.
Scott@ORCL >-ctxcat index and using catsearch queries:
Scott@ORCL > CREATE INDEX my_index2 ON COMPANY (COMPANY_NAME)
2 INDEXTYPE IS CTXSYS. CTXCAT PARALLEL
3 PARAMETERS ("LEXER your_lexer");
The index is created.
Scott@ORCL > SELECT
2 company_name
3 the COMPANY
4. WHERE the CATSEARCH (company.COMPANY_NAME, 'LLC', ") > 0
5 ORDER BY company.COMPANY_ID;
COMPANY_NAME
--------------------------------------------------
LSG SOLUTIONS LLC
Properties@Oklahoma, LLC
D.D.T L.L.C.
3 selected lines.
Scott@ORCL >-context and using the query index contains:
Scott@ORCL > CREATE INDEX my_index3 ON COMPANY (COMPANY_NAME)
2 INDEXTYPE IS CTXSYS. CONTEXT IN PARALLEL
3 PARAMETERS ("LEXER your_lexer");
The index is created.
Scott@ORCL > SELECT
2 company_name
3 the COMPANY
4 WHERE CONTAINS (company.COMPANY_NAME, 'LLC') > 0
5 ORDER BY company.COMPANY_ID;
COMPANY_NAME
--------------------------------------------------
LSG SOLUTIONS LLC
Properties@Oklahoma, LLC
D.D.T L.L.C.
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