提取从记录

Question

I'm第N场寻找任何方式在SQL中提取像下面的数据：

"Develop_Server Linux15a1 /home 5152384 2136036 2754616  44" 
"Homolog_Server Linux37a9 /var 5152384 2136036 2754616  57" 
"Produc_Server Linux43a5 /usr 5152384 2136036 2754616  98" 
"Produc_Server Linux23a0 /sys 5152384 2136036 2754616  43" 

select first field as Server, second field as Server_name, third field as FS, 
fourth field as fs_width, fifth field as FS_Used, sisxth field as FS_available, 
seventh field as Perc_Usage 
(Each row is a record) 
Please help me. 
Thanks. 

Answer 1

它看起来像你的行长度是固定的。你可以这样做：

select substr(row, 1, 19) as Server, 
     substr(row, 20, 10) as Server_name, 
     . . . 

你需要弄清楚正确的长度和偏移量是多少。

大多数数据库支持substr()或substring()。

您可能也想清除空格。大多数数据库支持trim()或rtrim()和ltrim()。

Answer 2

首先，创建目标表：按行

CREATE TABLE FinalTable 
([Server] varchar(50), 
[Server_name] varchar(50), 
[FS] varchar(50), 
[fs_width] varchar(50), 
[FS_Used] varchar(50), 
[FS_available] varchar(50), 
[Perc_Usage] varchar(50)) 
; 

使用游标和动态SQL，排

declare @sql varchar(max) 
declare @onlyField varchar(max) 

DECLARE db_cursor CURSOR FOR 
SELECT onlyField from logTable 

OPEN db_cursor 
FETCH NEXT FROM db_cursor INTO @onlyField 

WHILE @@FETCH_STATUS = 0 
BEGIN 
     SET @sql = 'insert into FinalTable select '''+REPLACE(@onlyField,'|',''',''')+'''' 

     EXEC (@sql) 

     FETCH NEXT FROM db_cursor INTO @onlyField 
END 

CLOSE db_cursor 
DEALLOCATE db_cursor