錯誤指令殼

我在shell檔案有這個命令：錯誤指令殼

sh -c $POSTGRESbin'psql -U '$POSTGRESuser' -h localhost -d '$POSTGRESdb' -c "select preview from '$fildCatalog' where preview <>'nodata' and id_registro in (select distinct(id_record) from e3_article_items where id_catalog=2101 and id_article in (select id_article from document_articles where id_document in(select distinct(id_document) from p3_logical_pages where id_logical_page in (select id_logical_page from p3_flatplan_pages where id_edition=1536 and id_logical_page is not null order by cast(pagenumber as numeric)))));"' > $queryFolder$highFile"_"$previewFile;

但<>「無數據」出現錯誤，我不知道我怎麼能解決這個問題。錯誤是：

ERROR: column "nodata" does not exist 
LINE 1: select preview from XT_FIJOS where preview <>nodata and id_r...

任何人都可以幫我嗎？

謝謝！ ^

來源

2012-10-25 jask

的問題是，你使用'...'引用shell命令的部分，所以你不能使用它們內命令的那些部分。因此，您的SQL查詢包含nodata而不是'nodata'，因此它認爲nodata應該是列名。（通過使用\"，這使得它多一點靈活的注意"..."可以包含文字"。）

sh -c "${POSTGRESbin}psql -U $POSTGRESuser -h localhost -d $POSTGRESdb -c \"select preview from '$fildCatalog' where preview <> 'nodata' and id_registro in (select distinct(id_record) from e3_article_items where id_catalog=2101 and id_article in (select id_article from document_articles where id_document in(select distinct(id_document) from p3_logical_pages where id_logical_page in (select id_logical_page from p3_flatplan_pages where id_edition=1536 and id_logical_page is not null order by cast(pagenumber as numeric)))));\"" > "$queryFolder${highFile}_$previewFile";

來源

2012-10-25 17:01:08 ruakh

謝謝，但我試圖用「......」和它的同一個問題： LINE 1：... LECT預覽從XT_HOUSE_PHOTOS其中預覽<>‘無數據’一... ^ 待辦事項你知道任何方式來「逃避」引用'...'？謝謝 – jask

@jask：我的答案現在包含* should *版本。 – ruakh

是的，抱歉，我沒有看到它，但不起作用:(。現在出現：LINE 1：...從XT_HOUSE_PHOTOS預覽<>「nodata」... lect預覽... – jask

：

爲了解決這個問題，你可以使用"..."代替'...'在需要的地方

這是正確的方法：

sh -c $POSTGRESbin'psql -U '$POSTGRESuser' -h localhost -d '$POSTGRESdb' -c "select preview from '$fildCatalog' where preview <>'\'nodata\'' and id_registro in (select distinct(id_record) from e3_article_items where id_catalog=2101 and id_article in (select id_article from document_articles where id_document in(select distinct(id_document) from p3_logical_pages where id_logical_page in (select id_logical_page from p3_flatplan_pages where id_edition=1536 and id_logical_page is not null order by cast(pagenumber as numeric)))));"' > $queryFolder$previewFile"_"$fildCatalog;

感謝您的幫助！

來源

2012-10-25 17:14:49 jask

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