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‎README.md

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@@ -1841,48 +1841,48 @@ SQLite
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**Opens a connection to the database file. Creates a new file if path doesn't exist.**
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```python
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import sqlite3
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<con> = sqlite3.connect(<path>) # Also ':memory:'.
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<con>.close() # Closes the connection.
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<conn> = sqlite3.connect(<path>) # Also ':memory:'.
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<conn>.close() # Closes the connection.
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```
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### Read
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**Returned values can be of type str, int, float, bytes or None.**
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```python
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<cursor> = <con>.execute('<query>') # Can raise a subclass of sqlite3.Error.
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<cursor> = <conn>.execute('<query>') # Can raise a subclass of sqlite3.Error.
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<tuple> = <cursor>.fetchone() # Returns next row. Also next(<cursor>).
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<list> = <cursor>.fetchall() # Returns remaining rows. Also list(<cursor>).
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```
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### Write
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```python
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<con>.execute('<query>') # Can raise a subclass of sqlite3.Error.
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<con>.commit() # Commits all transactions since last commit.
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<conn>.execute('<query>') # Can raise a subclass of sqlite3.Error.
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<conn>.commit() # Commits all transactions since last commit.
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```
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#### Or:
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```python
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with <con>:
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<con>.execute('<query>')
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with <conn>:
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<conn>.execute('<query>')
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```
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### Placeholders
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* **Passed values can be of type str, int, float, bytes, None, bool, datetime.date or datetime.datetme.**
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* **Bools will be stored and returned as ints and dates as [ISO formatted strings](#encode).**
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```python
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<con>.execute('<query>', <list/tuple>) # Replaces '?'s in query with values.
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<con>.execute('<query>', <dict/namedtuple>) # Replaces ':<key>'s with values.
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<con>.executemany('<query>', <coll_of_above>) # Runs execute() multiple times.
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<conn>.execute('<query>', <list/tuple>) # Replaces '?'s in query with values.
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<conn>.execute('<query>', <dict/namedtuple>) # Replaces ':<key>'s with values.
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<conn>.executemany('<query>', <coll_of_above>) # Runs execute() multiple times.
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```
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### Example
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**In this example values are not actually saved because `'con.commit()'` is omitted!**
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**In this example values are not actually saved because `'conn.commit()'` is omitted!**
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```python
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>>> con = sqlite3.connect('test.db')
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>>> con.execute('create table person (person_id integer primary key, name, height)')
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>>> con.execute('insert into person values (null, ?, ?)', ('Jean-Luc', 187)).lastrowid
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>>> conn = sqlite3.connect('test.db')
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>>> conn.execute('create table person (person_id integer primary key, name, height)')
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>>> conn.execute('insert into person values (null, ?, ?)', ('Jean-Luc', 187)).lastrowid
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1
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>>> con.execute('select * from person').fetchall()
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>>> conn.execute('select * from person').fetchall()
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[(1, 'Jean-Luc', 187)]
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```
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@@ -1891,8 +1891,8 @@ with <con>:
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```python
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# $ pip3 install mysql-connector
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from mysql import connector
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<con> = connector.connect(host=<str>, …) # `user=<str>, password=<str>, database=<str>`.
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<cursor> = <con>.cursor() # Only cursor has execute method.
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<conn> = connector.connect(host=<str>, …) # `user=<str>, password=<str>, database=<str>`.
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<cursor> = <conn>.cursor() # Only cursor has execute method.
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<cursor>.execute('<query>') # Can raise a subclass of connector.Error.
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<cursor>.execute('<query>', <list/tuple>) # Replaces '%s's in query with values.
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<cursor>.execute('<query>', <dict/namedtuple>) # Replaces '%(<key>)s's with values.

‎index.html

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</code></pre></div>
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<div><h2 id="sqlite"><a href="#sqlite" name="sqlite">#</a>SQLite</h2><p><strong>Server-less database engine that stores each database into a separate file.</strong></p><div><h3 id="connect">Connect</h3><p><strong>Opens a connection to the database file. Creates a new file if path doesn't exist.</strong></p><pre><code class="python language-python hljs"><span class="hljs-keyword">import</span> sqlite3
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&lt;con&gt; = sqlite3.connect(&lt;path&gt;) <span class="hljs-comment"># Also ':memory:'.</span>
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&lt;con&gt;.close() <span class="hljs-comment"># Closes the connection.</span>
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&lt;conn&gt; = sqlite3.connect(&lt;path&gt;) <span class="hljs-comment"># Also ':memory:'.</span>
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&lt;conn&gt;.close() <span class="hljs-comment"># Closes the connection.</span>
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</code></pre></div></div>
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<div><h3 id="read-1">Read</h3><p><strong>Returned values can be of type str, int, float, bytes or None.</strong></p><pre><code class="python language-python hljs">&lt;cursor&gt; = &lt;con&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>) <span class="hljs-comment"># Can raise a subclass of sqlite3.Error.</span>
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<div><h3 id="read-1">Read</h3><p><strong>Returned values can be of type str, int, float, bytes or None.</strong></p><pre><code class="python language-python hljs">&lt;cursor&gt; = &lt;conn&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>) <span class="hljs-comment"># Can raise a subclass of sqlite3.Error.</span>
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&lt;tuple&gt; = &lt;cursor&gt;.fetchone() <span class="hljs-comment"># Returns next row. Also next(&lt;cursor&gt;).</span>
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&lt;list&gt; = &lt;cursor&gt;.fetchall() <span class="hljs-comment"># Returns remaining rows. Also list(&lt;cursor&gt;).</span>
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</code></pre></div>
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<div><h3 id="write-1">Write</h3><pre><code class="python language-python hljs">&lt;con&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>) <span class="hljs-comment"># Can raise a subclass of sqlite3.Error.</span>
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&lt;con&gt;.commit() <span class="hljs-comment"># Commits all transactions since last commit.</span>
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<div><h3 id="write-1">Write</h3><pre><code class="python language-python hljs">&lt;conn&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>) <span class="hljs-comment"># Can raise a subclass of sqlite3.Error.</span>
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&lt;conn&gt;.commit() <span class="hljs-comment"># Commits all transactions since last commit.</span>
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</code></pre></div>
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<div><h4 id="or">Or:</h4><pre><code class="python language-python hljs"><span class="hljs-keyword">with</span> &lt;con&gt;:
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&lt;con&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>)
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<div><h4 id="or">Or:</h4><pre><code class="python language-python hljs"><span class="hljs-keyword">with</span> &lt;conn&gt;:
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&lt;conn&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>)
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</code></pre></div>
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<div><h3 id="placeholders">Placeholders</h3><ul>
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<li><strong>Passed values can be of type str, int, float, bytes, None, bool, datetime.date or datetime.datetme.</strong></li>
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<li><strong>Bools will be stored and returned as ints and dates as <a href="#encode">ISO formatted strings</a>.</strong></li>
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</ul><pre><code class="python language-python hljs">&lt;con&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;list/tuple&gt;) <span class="hljs-comment"># Replaces '?'s in query with values.</span>
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&lt;con&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;dict/namedtuple&gt;) <span class="hljs-comment"># Replaces ':&lt;key&gt;'s with values.</span>
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&lt;con&gt;.executemany(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;coll_of_above&gt;) <span class="hljs-comment"># Runs execute() multiple times.</span>
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</ul><pre><code class="python language-python hljs">&lt;conn&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;list/tuple&gt;) <span class="hljs-comment"># Replaces '?'s in query with values.</span>
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&lt;conn&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;dict/namedtuple&gt;) <span class="hljs-comment"># Replaces ':&lt;key&gt;'s with values.</span>
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&lt;conn&gt;.executemany(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;coll_of_above&gt;) <span class="hljs-comment"># Runs execute() multiple times.</span>
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</code></pre></div>
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<div><h3 id="example">Example</h3><p><strong>In this example values are not actually saved because <code class="python hljs"><span class="hljs-string">'con.commit()'</span></code> is omitted!</strong></p><pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>con = sqlite3.connect(<span class="hljs-string">'test.db'</span>)
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<span class="hljs-meta">&gt;&gt;&gt; </span>con.execute(<span class="hljs-string">'create table person (person_id integer primary key, name, height)'</span>)
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<span class="hljs-meta">&gt;&gt;&gt; </span>con.execute(<span class="hljs-string">'insert into person values (null, ?, ?)'</span>, (<span class="hljs-string">'Jean-Luc'</span>, <span class="hljs-number">187</span>)).lastrowid
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<div><h3 id="example">Example</h3><p><strong>In this example values are not actually saved because <code class="python hljs"><span class="hljs-string">'conn.commit()'</span></code> is omitted!</strong></p><pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>conn = sqlite3.connect(<span class="hljs-string">'test.db'</span>)
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<span class="hljs-meta">&gt;&gt;&gt; </span>conn.execute(<span class="hljs-string">'create table person (person_id integer primary key, name, height)'</span>)
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<span class="hljs-meta">&gt;&gt;&gt; </span>conn.execute(<span class="hljs-string">'insert into person values (null, ?, ?)'</span>, (<span class="hljs-string">'Jean-Luc'</span>, <span class="hljs-number">187</span>)).lastrowid
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<span class="hljs-number">1</span>
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<span class="hljs-meta">&gt;&gt;&gt; </span>con.execute(<span class="hljs-string">'select * from person'</span>).fetchall()
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<span class="hljs-meta">&gt;&gt;&gt; </span>conn.execute(<span class="hljs-string">'select * from person'</span>).fetchall()
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[(<span class="hljs-number">1</span>, <span class="hljs-string">'Jean-Luc'</span>, <span class="hljs-number">187</span>)]
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</code></pre></div>
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<div><h3 id="mysql">MySQL</h3><p><strong>Has a very similar interface, with differences listed below.</strong></p><pre><code class="python language-python hljs"><span class="hljs-comment"># $ pip3 install mysql-connector</span>
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<span class="hljs-keyword">from</span> mysql <span class="hljs-keyword">import</span> connector
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&lt;con&gt; = connector.connect(host=&lt;str&gt;, …) <span class="hljs-comment"># `user=&lt;str&gt;, password=&lt;str&gt;, database=&lt;str&gt;`.</span>
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&lt;cursor&gt; = &lt;con&gt;.cursor() <span class="hljs-comment"># Only cursor has execute method.</span>
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&lt;conn&gt; = connector.connect(host=&lt;str&gt;, …) <span class="hljs-comment"># `user=&lt;str&gt;, password=&lt;str&gt;, database=&lt;str&gt;`.</span>
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&lt;cursor&gt; = &lt;conn&gt;.cursor() <span class="hljs-comment"># Only cursor has execute method.</span>
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&lt;cursor&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>) <span class="hljs-comment"># Can raise a subclass of connector.Error.</span>
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&lt;cursor&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;list/tuple&gt;) <span class="hljs-comment"># Replaces '%s's in query with values.</span>
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&lt;cursor&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;dict/namedtuple&gt;) <span class="hljs-comment"># Replaces '%(&lt;key&gt;)s's with values.</span>

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