Error establishing a database connection

Installed wordpress, made a few test posts. Then created network.

Got through the wp-config.php & .htaccess edits. Receive “Error establishing a database connection” when I try to login.

Repaired and optimized database. Received the following errors.
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help_1_posts: Table ‘wp.help_1_posts’ doesn’t exist
help_1_comments: Table ‘wp.help_1_comments’ doesn’t exist
help_1_links: Table ‘wp.help_1_links’ doesn’t exist
help_1_options: Table ‘wp.help_1_options’ doesn’t exist
help_1_postmeta: Table ‘wp.help_1_postmeta’ doesn’t exist
help_1_terms: Table ‘wp.help_1_terms’ doesn’t exist
help_1_term_taxonomy: Table ‘wp.help_1_term_taxonomy’ doesn’t exist
help_1_term_relationships: Table ‘wp.help_1_term_relationships’ doesn’t exist
help_1_commentmeta: Table ‘wp.help_1_commentmeta’ doesn’t exist

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