>= CONVERT(datetime, ' 00:00:00', 120)ĪND < CONVERT(datetime, ' 00:00:00', 120) īeing explicit about types is a very good habit to get into, particularly when dealing with dates and times. That said, there are good reasons (as Aaron points out in his answer) to use a half-open range instead of BETWEEN (I use style 120 below just for variety): SELECT COUNT(*) Being explicit about the data type and string style results in the following: SELECT COUNT(*) The following example illustrates how the string representation of a DateTime value returned by the ToString() method depends on the thread current culture. The question uses strings in ODBC canonical (with milliseconds) format (style 121). When working with strings and date/time types, CONVERT is to be preferred because it provides a style parameter to explicitly define the string format. SQL Server provides the CAST and CONVERT functions for this purpose. Using the CONVERT() function to convert datetime to string. In my view, the neatest way to avoid these types of issues is to be explicit about types. Summary: in this tutorial, you will learn how to convert datetime to string in SQL Server using the CONVERT() function. Without explicit information about the format of the strings, SQL Server follows its convoluted rules for interpreting strings as datetimes. To compare those literals with the datetime column, SQL Server attempts to convert the strings to datetime types, according to the rules of data type precedence. The literals you are providing for comparison to the Created column are strings. I do not understand why the data is being converted from varchar to datetime when 'Created' is set to datetime
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