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col1 VARCHAR(100) FUZZY SEARCH INDEX OFF,
col2 NVARCHAR(100)
);
The view SYS.TABLE_COLUMNS shows the current state of the fuzzy search index. When working with attribute
views, this information is also visible in SYS.VIEW_COLUMNS.
SELECT column_name, data_type_name, fuzzy_search_index
FROM table_columns
WHERE table_name = 'MYTABLE';
Fuzzy Search on One Column
1. Create the data.
CREATE COLUMN TABLE companies
(
id INTEGER PRIMARY KEY,
companyname SHORTTEXT(200) FUZZY SEARCH INDEX ON
);
INSERT INTO companies VALUES (1, 'SAP Corp');
INSERT INTO companies VALUES (2, 'SAP in Walldorf Corp');
INSERT INTO companies VALUES (3, 'ASAP');
INSERT INTO companies VALUES (4, 'ASAP Corp');
INSERT INTO companies VALUES (5, 'BSAP orp');
INSERT INTO companies VALUES (6, 'IBM Corp');
2. Perform the search on one column.
SELECT SCORE() AS score, * FROM companies
WHERE CONTAINS(companyname,'xSAP Corp Walldorf',
FUZZY(0.7,'textSearch=compare,bestMatchingTokenWeight=0.7'))
ORDER BY score DESC;
SCORE ID COMPANYNAME
0.94 2 SAP in Walldorf Corp
Fuzzy Search on Two Columns
1. Create the data.
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CREATE COLUMN TABLE companies2
(
id INTEGER PRIMARY KEY,
companyname SHORTTEXT(200) FUZZY SEARCH INDEX ON,
contact SHORTTEXT(100) FUZZY SEARCH INDEX ON
);
INSERT INTO companies2 VALUES (1, 'SAP Corp', 'Mister Master');
INSERT INTO companies2 VALUES (2, 'SAP in Walldorf Corp', 'Master
Mister');
INSERT INTO companies2 VALUES (3, 'ASAP', 'Nister Naster');
INSERT INTO companies2 VALUES (4, 'ASAP Corp', 'Mixter Maxter');
INSERT INTO companies2 VALUES (5, 'BSAP orp', 'Imster Marter');
INSERT INTO companies2 VALUES (6, 'IBM Corp', 'M. Master');
P U B L I C
© 2012 SAP AG. All rights reserved.
SAP HANA Developer Guide
Enabling Search