mysql - Select data from multiple tables in same query -


I am trying to drag all categories for a blog post when the blog loads. I list 2 tables for categories, one for myself and one for each category, which categories for which all blog posts are allocated.

MySQL command I have 

  is selection `category_name`,` `category_slug` from blog_categories`,` blog_post_categories` where` blog_categories.category_id` = 'blog_post_categories.category_id `And` blog_post_categories.post_id` = 1   
 but I keep getting  
 blog_categories: error following  
  unknown column 'where Section '  
 has two tables like' blog_categories.category_id 'column_ category_id, CATEGORY_NAME and category_slug blog_post_categories is the column id, post_id, and category_id  
 I can help out here with as I Area'm starting with my hair pulled out.   
  itemprop = "text"> 
 Your backticts should be in the proper place pre <> as  <> in < category_slug` are not selected, `category_slug` from` blog segment`, `blog_post_categories` where` blog_categories`.category_id` = `blog_post_categories`.`category_id` and` blog_post_categories``post_id` = 1

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