从字符串中提取子字符串,单词在MySQL中用斜杠分隔?
为此,您可以使用SUBSTRING_INDEX()。让我们首先创建一个-
mysql> create table DemoTable1416-> (
-> StudentCode varchar(100)
-> );
使用insert在表中插入一些记录-
mysql> insert into DemoTable1416 values('101/John/Smith');mysql> insert into DemoTable1416 values('901/Carol/Taylor');
mysql> insert into DemoTable1416 values('400/David/Miller');
使用选择显示表中的所有记录-
mysql> select * from DemoTable1416;
这将产生以下输出-
+------------------+| StudentCode |
+------------------+
| 101/John/Smith |
| 901/Carol/Taylor |
| 400/David/Miller |
+------------------+
3 rows in set (0.00 sec)
以下是从带有斜杠分隔的单词的字符串中提取子字符串的查询-
mysql> select substring_index(StudentCode,'/',-2) from DemoTable1416;
这将产生以下输出-
+-------------------------------------+| substring_index(StudentCode,'/',-2) |
+-------------------------------------+
| John/Smith |
| Carol/Taylor |
| David/Miller |
+-------------------------------------+
3 rows in set (0.00 sec)
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