You can use the get_post_field() function to get any of the wp_posts column fields. For example, get_post_field function retrieve the data from a post field based on Post ID.
echo get_post_field('post_content', $post_id);
Examples of the get_post_field function will be, ‘post_type’, ‘post_status’, ‘post_content’, etc. and check the following reference page.
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