MySQL中匯入 匯出CSV

來自：

匯出

select

*from
test_info   
into outfile '
/tmp/test.csv
'fields terminated by'
,' optionally enclosed by'"
' escaped by'"
'lines terminated by'
\r\n
';

匯入

load data infile '

/tmp/test.csv
'into
table
test_info    
fields terminated by'
,'  optionally enclosed by'"
' escaped by'"
'lines terminated by'
\r\n
';

其中關鍵引數是

fields terminated by',

' optionally enclosed by'"
' escaped by'"
'lines terminated by'
\r\n
'

這個引數是根據rfc4180文件設定的，該文件全稱common format and mime type for comma-separated values (csv) files，其中詳細描述了csv格式，其要點包括：

(1)字段之間以逗號分隔，資料行之間以\r\n分隔；

(2)字串以半形雙引號包圍，字串本身的雙引號用兩個雙引號表示。

shell 例子

#!/bin/sh

. /opt/shtools/commons/mysql.sh
# mysql_csv_format="
fields terminated by ',' optionally enclosed by '\"' escaped by '\"' lines terminated by '\r\n'
"echo
"mysql_csv_format=$mysql_csv_format
"rm /tmp/test.csv  
mysql -p --default-character-set=gbk -t --verbose test 
create table 
ifnot exists test_info (  
id  integer not null
,      content varchar(
64) not null
,      primary key (
id)  
);  
delete from test_info;  
insert into test_info values (
2010, '
hello, line  
suped  
seped  
"  end'
);  
select *from test_info;  
-- select * from test_info into outfile '
/tmp/test.csv
' fields terminated by '
,' optionally enclosed by '
"' escaped by '
"' lines terminated by '
\r\n
';  
select * from test_info into outfile '
/tmp/test.csv
'$mysql_csv_format;  
delete from test_info;  
-- load data infile '
/tmp/test.csv
' into table test_info fields terminated by '
,'  optionally enclosed by '
"' escaped by '
"' lines terminated by '
\r\n
';  
load data infile 
'/tmp/test.csv
'into table test_info $mysql_csv_format;  
select *from test_info;  
eof  
echo
"***** content in /tmp/test.csv *****
"cat /tmp/test.csv

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