這篇文章給大家分享的是有關(guān)MYSQL如何使用infile/outfile的內(nèi)容。小編覺(jué)得挺實(shí)用的,因此分享給大家做個(gè)參考,一起跟隨小編過(guò)來(lái)看看吧。
創(chuàng)新互聯(lián)公司2013年至今,先為南岸等服務(wù)建站,南岸等地企業(yè),進(jìn)行企業(yè)商務(wù)咨詢服務(wù)。為南岸企業(yè)網(wǎng)站制作PC+手機(jī)+微官網(wǎng)三網(wǎng)同步一站式服務(wù)解決您的所有建站問(wèn)題。由于現(xiàn)有的東家要求使用MYSQL數(shù)據(jù)庫(kù),所以最近也開(kāi)始了對(duì)MYSQL數(shù)據(jù)庫(kù)的進(jìn)一步的研究,首先介入的當(dāng)然是一些正常的應(yīng)用了:
outfile/infile的靈活:
今天接觸了下mysql下的outfile和infile感覺(jué)和實(shí)際使用很貼切,不像ORACLE那么商業(yè)化,任何操作都要封裝成自己的接口來(lái)實(shí)現(xiàn)、操作,MYSQL直接通過(guò)一個(gè)簡(jiǎn)單的語(yǔ)句就完成了數(shù)據(jù)的導(dǎo)入、導(dǎo)出,滿足了日常的靈活性與可控性。
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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