sql cast datetime to date

The dates range from 0001-01-01 to 9999-12-31.The time range is wide from 00:00:00 to 23:59:59.9999999.-----------------DATE--Store only DatesSelect cast('2016-10-13 12:23:30' asdate)--output Result: 2016-10-13----------------- TimeSelect cast('2016-10-13 12:23:30' asTime )--Store time only--output Result: 12:23:30.0000000-----------------TIMESTAMP--Binary numb

GrammarUse CAST: CAST (expression as data_type) Use CONVERT: CONVERT (data_type[(length)], expression [, style]) ParametersExpression Is any valid Microsoft SQL Server expression. For more information, see expressions. Data_type The data types provided by the target system, including bigint and sql_variant. You cannot use user-defined data types. For more

First, the CONVERT functionCharacter Set conversions: convert (XXX USING gb2312) type conversions are the same as SQL Server, but differ on type parameters: CAST (xxx as type), convert (XXX, type), type must be of the following type:Available type binary with binary prefix effect: binary character type, parameter: CHAR () Date:

SyntaxUse CAST: CAST (expression AS data_type) Use CONVERT: CONVERT (data_type [(length)], expression [, style]) ParametersExpression Is any valid Microsoft SQL Server "expression. For more information, see expressions. Data_type The data types provided by the target system, including bigint and SQL _variant. User-Defi

. Net datetime indicates that the time range is wider. It can be expressed from January 1, to January 1. The zero value time is the start time of the range, that is, January 1, January 1, 0001. The datetime type of SQL Server can only represent the time from January 1, to January 1. The zero-value time is not the start time of the range, but January 1, Januar

SQL Statement conversion Format function cast, convertBoth cast and convert are often used. Specially extracted as an article, convenient to find.Both cast and convert can perform data type conversions. In most cases, the two perform the same function, but the convert also provides some special

SQL Statement conversion Format function cast, convertBoth cast and convert are often used. Specially extracted as an article, convenient to find.Both cast and convert can perform data type conversions. In most cases, the two perform the same function, but the convert also provides some special

syntax structure: 1. Cast Syntax structure: CAST (expression as data_type [(length)]) 2. Convert Syntax structure: CONVERT (data_type [(length)], expression [, style]) 3. Parse Syntax structure: PARSE (string_value as data_type [USING culture]) Where Parse is a new feature of SQL Server expression must be a string form of the converted Type Performance Analysi

Both cast and convert in SQL Server convert an expression from one data type to another data type. Because SQL Server provides two features, it can be confusing to choose which feature should be chosen or in which case the feature should be used. Convert is designed for use with SQL Server, allowing for greater flexibi

1.sqlserver CAST and CONVERT functionsExplicitly converts an expression of a data type to another data type. CAST and CONVERT provide similar functionality.GrammarUsing CAST:CAST (expression as data_type)Using CONVERT:CONVERT (data_type[(length)], expression [, style])ParametersExpressionIs any valid Microsoft SQL Server expression. For more information, see expr

Explicitly converts a data type expression to another data type. CAST and CONVERT provide similar functions.Syntax Use CAST: CAST (expression AS data_type) Use CONVERT: CONVERT (data_type [(length)], expression [, style])Parameters Expression Is any valid Microsoft SQL Server expression. Data_type The data types provid

The correct PHP SQL statement should be written as: The code is as follows Copy Code $sql = "INSERT into table (datetime) VALUES ('". Date ("Y-m-d h:i:s", Time ()). The DateTime field is of type DateTime