== Using connections

When you need to execute sequential queries (without a transaction), you can create a new connection
or borrow one from the pool:

[source,js]
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Prepared queries can be created:

[source,js]
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var Tuple = require("vertx-sql-client-js/tuple");
connection.prepare("SELECT * FROM users WHERE first_name LIKE $1", function (ar1, ar1_err) {
  if (ar1_err == null) {
    var pq = ar1;
    pq.query().execute(Tuple.of("andy"), function (ar2, ar2_err) {
      if (ar2_err == null) {
        // All rows
        var rows = ar2;
      }
    });
  }
});

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