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由于现有的东家要求使用MYSQL数据库，所以最近也开始了对MYSQL数据库的进一步的研究，首先介入的当然是一些正常的应用了：
outfile/infile的灵活：
今天接触了下mysql下的outfile和infile感觉和实际使用很贴切，不像ORACLE那么商业化，任何操作都要封装成自己的接口来实现、操作，MYSQL直接通过一个简单的语句就完成了数据的导入、导出，满足了日常的灵活性与可控性。
LOAD DATA [LOW_PRIORITY | CONCURRENT] [LOCAL] INFILE 'file_name.txt'
[REPLACE | IGNORE]
INTO TABLE tbl_name
[FIELDS
[TERMINATED BY 'string']
[[OPTIONALLY] ENCLOSED BY 'char']
[ESCAPED BY 'char' ]
]
[LINES
[STARTING BY 'string']
[TERMINATED BY 'string']
]
[IGNORE number LINES]
[(col_name_or_user_var,...)]
[SET col_name = expr,...)]
demo：
示例文件：
e.txt
===========================
1 2
1 2
1 2
3 4
1 2
3 4
3 4
==============================
ab
==============================
1,2;3,4
==============================
mysql> load data infile 'd:e.txt' into table test1;
Query OK, 7 rows affected (0.13 sec)
Records: 7 Deleted: 0 Skipped: 0 Warnings: 0
mysql> load data infile 'd:e.txt' replace into table test1;
Query OK, 7 rows affected (0.06 sec)
Records: 7 Deleted: 0 Skipped: 0 Warnings: 0
mysql> load data infile 'd:ab' replace into table test1 FIELDS TERMINATED by ',' LINES TERMINATED by ';';
Query OK, 2 rows affected (0.09 sec)
Records: 2 Deleted: 0 Skipped: 0 Warnings: 0
mysql> load data infile 'd:e.txt' replace into table test1 FIELDS TERMINATED by ',' LINES TERMINATED by ';' ignore 2
Query OK, 0 rows affected (0.00 sec)
Records: 0 Deleted: 0 Skipped: 0 Warnings: 0
outfile
mysql> select * into outfile 'd:out1.txt' from test1;
Query OK, 23 rows affected (0.00 sec)
mysql> select * into outfile 'd:out2.txt' FIELDS TERMINATED by ',' from test1
-> ;
Query OK, 23 rows affected (0.00 sec)
mysql> select * into outfile 'd:out3.txt' FIELDS TERMINATED by ',' lines terminated by ';' from test1
-> ;
Query OK, 23 rows affected (0.02 sec)
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