如何使用 MySQL SOUNDEX() 函数和 LIKE 运算符从表中检索记录?
mysqlmysqli database
众所周知，SOUNDEX() 函数用于返回 soundex，这是一种根据英语发音对名称进行索引的语音算法，即字符串的字符串。在下面的例子中，我们从‘student_info’表中获取数据，并应用 SOUNDEX() 函数和 LIKE 运算符从表中检索特定记录−
mysql> Select * from Student_info; +------+---------+------------+------------+ | id | Name | Address | Subject | +------+---------+------------+------------+ | 101 | YashPal | Amritsar | History | | 105 | Gaurav | Chandigarh | Literature | | 125 | Raman | Shimla | Computers | +------+---------+------------+------------+ 3 rows in set (0.00 sec) mysql> Select * from student_info where SOUNDEX(Name) LIKE '%G%'; +------+--------+------------+------------+ | id | Name | Address | Subject | +------+--------+------------+------------+ | 105 | Gaurav | Chandigarh | Literature | +------+--------+------------+------------+ 1 row in set (0.00 sec)
我们将列名用作 SOUNDEX() 函数的参数，它返回具有 SOUNDEX 值 LIKE %G% 的行。
请记住，SOUNDEX() 函数的输出将始终包含作为参数传入的字符串的首字母。例如，如果我们将"Ram"作为 SOUNDEX() 函数的参数传入，然后查看输出，它包含"R"作为第一个字符 −
mysql> Select SOUNDEX('Ram');
+----------------+
| SOUNDEX('Ram') |
+----------------+
| R500 |
+----------------+
1 row in set (0.00 sec)
mysql> Select SOUNDEX('ram');
+----------------+
| SOUNDEX('ram') |
+----------------+
| R500 |
+----------------+
1 row in set (0.00 sec)
