public void TestCount_1()
{
_clause.Count();
Assert.Equal("Select Count(*)", GetSql());
}
/// <summary>
/// 求总行数
/// </summary>
/// <param name="columnAlias">列别名</param>
/// <returns></returns>
public ISqlBuilder Count(string columnAlias = null)
{
SelectClause.Count(columnAlias);
return(this);
}
/// <summary>
/// 求总行数
/// </summary>
/// <typeparam name="TEntity">实体类型</typeparam>
/// <param name="expression">列名表达式</param>
/// <param name="columnAlias">列别名</param>
/// <returns></returns>
public virtual ISqlBuilder Count <TEntity>(Expression <Func <TEntity, object> > expression, string columnAlias = null) where TEntity : class
{
SelectClause.Count(expression, columnAlias);
return(this);
}
public void TestCount_1()
{
_clause.Count();
Assert.Equal("Select Count(*)", GetSql());
Assert.True(_clause.IsAggregation);
}
/// <summary>
/// 求总行数
/// </summary>
/// <param name="column">列</param>
/// <param name="columnAlias">列别名</param>
/// <returns></returns>
public virtual ISqlBuilder Count(string column, string columnAlias)
{
SelectClause.Count(column, columnAlias);
return(this);
}