Question

我想执行以下mysql -uuser -ppass -h remote.host.tld database < script.sql

其中script.sql包含以下内容

SELECT *
FROM webrecord_wr25mfz_20101011_175524
FIELDS TERMINATED BY ',' 
ENCLOSED BY '"' 
LINES TERMINATED BY '\n'

我希望CSV输出指向标准输出。原因是因为使用INTO OUTFILE 'blah.csv'运行此查询会将文件保存在远程主机上。我希望文件保存在本地主机上。

如果我可以将标准输出重定向到文件，那将是花花公子。

Answer 1

上面的答案似乎不能完全回答原始问题，我不确定是否可以，但是希望这可以对某人有所帮助：

有关如何<Icon fill="#49c" name="phone" width="800" height='800'/>的很多评论，请参见How to output MySQL query results in CSV format?。例如，根据原始参数，以下可能就足够了：

export default class Icon extends React.Component {render() {
return (
<svg className='illustration-comp'  viewBox="0 0 1155 700" >
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}
}

这与上面的答案类似，但是重定向到<svg style={{width:this.props.width,height:this.props.height}} viewBox="0 0 1155 700" >而不是sed。

但是，（尽管不确定是否需要保留制表符，但是有很多方法可以解决此问题），我已经使用https://stackoverflow.com/a/2543226/2178980来正确地将双引号转义并转换为逗号分隔：

mysql --batch -u user -h remote.host.tld database --port 3306 -ppass -e "SELECT * FROM webrecord_wr25mfz_20101011_175524;" | sed 's/\t/,/g' 2>&1

通过stdout执行blah.csv mysql --batch -u user -h remote.host.tld database --port 3306 -ppass -e "SELECT * FROM webrecord_wr25mfz_20101011_175524;" | perl -lpe 's/"/\\"/g; s/^|$/"/g; s/\t/","/g' 2>&1（此输出将以制表符分隔）
通过管道传递到sql转换为逗号分隔
通过附加"SELECT * FROM webrecord_wr25mfz_20101011_175524;"将输出转到mysql

Answer 2

试试这个：mysql -uuser -ppass -h remote.host.tld database < script.sql 2> blah.csv

这将重定向stderr

Answer 3

部分重复给MySQL SELECT INTO OUTFILE to a different server的问题。没有FIELDS TERMINATED BY

不能使用into outfile

（不是很优雅）替代方法是使用--batch选项来产生制表符分隔的输出并设置标准输出。像这样：

mysql --batch -uuser -ppass -h remote.host.tld database < stack.sql | sed 's/\t/,/g' > blah.csv

请注意，--batch会转义特殊字符，因此，根据您拥有的数据及其可预测性，您可能需要更改sed

MySQL查询将输出打印为CSV到标准输出

3 个答案: