db\DataReader count()

count() public method

Returns the number of rows in the result set.

This method is required by the Countable interface. Note, most DBMS may not give a meaningful count. In this case, use "SELECT COUNT(*) FROM tableName" to obtain the number of rows.

public integer count ( )
return	integer	Number of rows contained in the result.

Links:

http://www.yiiframework.com/doc-2.0/yii-db-datareader.html#count()-detail

doc_Yii

2016-10-30 16:58:01

Comments

Popular Articles

db\DataReader valid() valid() public method Returns whether there is a row of data at current position. This method is required by the interface Iterator. public boo

db\DataReader $isClosed $isClosed public read-only property Whether the reader is closed or not. public boolean getIsClosed ( )

db\DataReader readColumn() readColumn() public method Returns a single column from the next row of a result set. public mixed readColumn ( $columnIndex )$columnIndex inte

db\DataReader $rowCount $rowCount public read-only property Number of rows contained in the result. public integer getRowCount ( )

db\DataReader rewind() rewind() public method Resets the iterator to the initial state. This method is required by the interface Iterator. public void rewind ( )throw