Bi-sql like

LIKE The operator

LIKE Operators belong to pairs WHERE Supplement to Clause . Usually we use WHERE Clauses know the specific filter conditions , But sometimes , Fuzzy query is also required , This situation requires LIKE.

Horizontal contrast , stay PowerBI Use in SEARCH Functions plus wildcards can achieve similar results .

Portal ：

《SQL 丨 WHERE Clause 》

《PowerBI 丨 SEARCH》

Basic grammar

SELECT  Column name （*） FROM  The name of the table  WHERE  Column name  LIKE  Conditions 

matters needing attention

SQL The wildcard in is ：%

PowerBI The wildcard in is ：？ or *

Using examples

Case data ：

In the database of white tea machine , There is a name “TEST” The database of , There is a name “ Product list ” Case data for .

Example 1：

stay PowerBI in , Filter out... In the product table [ Name of commodity ] contain “ child ” All information of the word .

SELECT * FROM  Product list  WHERE  Name of commodity  LIKE N'% child %'

give the result as follows ：

Example 2：

stay PowerBI in , Filter out... In the product table [ Name of commodity ] contain “ shoes ” All the information about .

SELECT * FROM  Product list  WHERE  Name of commodity  LIKE N'% shoes '

give the result as follows ：

Example 3：

stay PowerBI in , Filter out... In the product table [ Item number ] With “2” All the information at the beginning .

SELECT * FROM  Product list  WHERE  Item number  LIKE '2%'

give the result as follows ：

Example 4：

stay PowerBI in , Filter out... In the product table [ Classification of goods ] It doesn't contain “ Babies ” All the information about .

SELECT * FROM  Product list  WHERE  Classification of goods  NOT LIKE N'% Infant %'

give the result as follows ：

This is white tea , One PowerBI Beginners .