oracle PL/SQL 拆分字符串,获取最后一个值?
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PL/SQL split string, get last value?
提问by SlashJ
how could one split a string in PL/SQL to get the last value if the pattern look like this? :
如果模式看起来像这样,如何在 PL/SQL 中拆分字符串以获取最后一个值?:
'1;2', in this case the value i want would be 2.
'1;2',在这种情况下,我想要的值为 2。
Note: the splitter is the character ';' and values are of different length like '1;2 or 123;45678 etc...'
注意:分隔符是字符';' 和值的长度不同,如“1;2 或 123;45678 等...”
Thanks in advance!
提前致谢!
回答by Justin Cave
SELECT SUBSTR( column_name,
INSTR( column_name, ';', -1 ) + 1 )
FROM table_name
should work. Here is a SQL Fiddle example.
应该管用。这是一个SQL Fiddle 示例。
回答by Egor Skriptunoff
regexp_substr(your_string, '[^;]*$')
回答by Noel
You should first find the position of ; using,
您应该首先找到 ; 使用,
instr(string,';',1,1)
Then use SUBSTR
function to extract the value starting from one more than the value found in previous function.
然后使用SUBSTR
函数从比前一个函数中找到的值多一个开始提取值。
select substr(string,instr(string,';',1,1) + 1) from table;
回答by T.S.
In your case, you can use instr with -1 start position and Substr.
在您的情况下,您可以将 instr 与 -1 起始位置和 Substr 一起使用。
pos := instr( searchIn, ';', -1, 1)
res := substr(searchIn, pos + 1)
This should work, and if not... this is has to do it
这应该有效,如果没有......这是必须的