become a programmer
這裡主要是看,當兩個表和某一個表都有聯絡的時候,左連線left join on要怎麼寫,所以,我就只列sql語句了。
select intro_web_page.id, web_id, web_name, template_id , template_name, template_param, intro_web_page.sort_order from intro_web_page left join intro_web on (web_id=intro_web.id) left join intro_template on (intro_web_page.template_id=intro_template.id)
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become a programmer
這裡主要是看,當兩個表和某一個表都有聯絡的時候,左連線left join on要怎麼寫,所以,我就只列sql語句了。 select intro_web_page.id, web_id, web_
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