Inserting SQLite rows via Ruby iteration

StackOverflow https://stackoverflow.com/questions/19216288

  •  30-06-2022
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Domanda

Inserting 5 rows of 4-column data into an existing SQLite db, and I get these errors...

/Users/Sam/.rvm/gems/ruby-2.0.0-p247/gems/sqlite3-1.3.8/lib/sqlite3/database.rb:91:in `initialize': near "tagline": syntax error (SQLite3::SQLException)
        from /Users/Sam/.rvm/gems/ruby-2.0.0-p247/gems/sqlite3-1.3.8/lib/sqlite3/database.rb:91:in `new'
        from /Users/Sam/.rvm/gems/ruby-2.0.0-p247/gems/sqlite3-1.3.8/lib/sqlite3/database.rb:91:in `prepare'
        from /Users/Sam/.rvm/gems/ruby-2.0.0-p247/gems/sqlite3-1.3.8/lib/sqlite3/database.rb:134:in `execute'
        from insert_code_sam.rb:60:in `block in <main>'
        from insert_code_sam.rb:59:in `times'
        from insert_code_sam.rb:59:in `<main>'

Here are last lines (59-61) from my .rb file:

    5.times do
      db.execute('INSERT INTO index1 (name tagline blurb photo_url) 
        VALUES (?, ?, ?, ?)', ["name", "tagline", "blurb", "photo"])
    end

Any suggestions?

È stato utile?

Soluzione

You just have a small syntax error in your SQL. The column list for an INSERT should be comma delimited:

INSERT INTO index1 (name, tagline, blurb, photo_url) ...
                        ^        ^      ^

so your Ruby should look like this:

5.times do
  db.execute('INSERT INTO index1 (name, tagline, blurb, photo_url) VALUES (?, ?, ?, ?)', ["name", "tagline", "blurb", "photo"])
end

See the "column-name" loop in the SQLite INSERT syntax diagram:

enter image description here

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