database connection, installation [SOLVED]

I downloaded wordpress 4.7.4 and followed the indications in
https://codex.ww.wp.xz.cn/Create_A_Network
I change the configuration file and .htaccess as suggested

I disconnect, clear cache and cookies and whent I try to login I receive this error message:
There was an error in establishing a database connection

1) The database works, I connect regularly with phpmyadmin
2) There is nothing in apache log files
3) There is nothing in mysql log files

I will gladly accept tips and tests.
Thanks in advance
UPDATE
I changed the configuration file (define (‘WP_ALLOW_REPAIR’, true);) and started the repair procedure, this is the result
wp_1_posts: Table ‘wordpress_db.wp_1_posts’ doesn’t exist
wp_1_comments: Table ‘wordpress_db.wp_1_comments’ doesn’t exist
wp_1_links: Table ‘wordpress_db.wp_1_links’ doesn’t exist
wp_1_options: Table ‘wordpress_db.wp_1_options’ doesn’t exist
wp_1_postmeta: Table ‘wordpress_db.wp_1_postmeta’ doesn’t exist
wp_1_terms: Table ‘wordpress_db.wp_1_terms’ doesn’t exist
wp_1_term_taxonomy: Table ‘wordpress_db.wp_1_term_taxonomy’ doesn’t exist
wp_1_term_relationships: Table ‘wordpress_db.wp_1_term_relationships’ doesn’t exist
wp_1_termmeta: Table ‘wordpress_db.wp_1_termmeta’ doesn’t exist
wp_1_commentmeta: Table ‘wordpress_db.wp_1_commentmeta’ doesn’t exist

tips??
Thank you
—
solved reading
https://wordpress.stackexchange.com/questions/120880/i-have-a-problem-with-my-wordpress-db-after-i-tried-to-install-multi-site

• This topic was modified 9 years, 1 month ago by gianc.
• This topic was modified 9 years, 1 month ago by gianc.