Represents the result of an operation on database.
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__construct()
columnsNames() : array
arraythe list of names of columns.
next() : \io\vertx\jphp\sqlclient\SqlResult<T>
\io\vertx\jphp\sqlclient\SqlResultthe next available result or {@code null} if none is available
rowCount() : integer
The meaning depends on the executed statement:
integerthe count of affected rows.
size() : integer
integerthe count of rows.
value() : mixed
mixedthe result