#CONVERT STRING TO DATE IN SQL HOW TO#
In this tutorial, we have shown you various examples of using the MySQL STR_TO_DATE() function to convert strings to date and time values.Summary: in this tutorial, you will learn how to convert a string to a datetime in SQL Server using the CONVERT() and TRY_CONVERT() function.
#CONVERT STRING TO DATE IN SQL CODE#
SELECT STR_TO_DATE( '20130101 1130', '%Y%m%d %h%i') Code language: SQL (Structured Query Language) ( sql ) The following example converts the string into a DATETIME value because the input string provides both date and time parts. Similar to the unspecified date part, the STR_TO_DATE() function sets unspecified time part to zero, see the following example: SELECT STR_TO_DATE( '11', '%h') Code language: SQL (Structured Query Language) ( sql ) The following example converts a time string into a TIME value: SELECT STR_TO_DATE( '113005', '%h%i%s') Code language: SQL (Structured Query Language) ( sql ) See the following example: SELECT STR_TO_DATE( '2013', '%Y') Code language: SQL (Structured Query Language) ( sql )īecause the input string only provides year value, the STR_TO_DATE() function returns a date value that has month and day set to zero. The STR_TO_DATE() sets all incomplete date values, which are not provided by the input string, to zero.
See the following example: SELECT STR_TO_DATE( '21,5,2013 extra characters', '%d,%m,%Y') Code language: SQL (Structured Query Language) ( sql ) The STR_TO_DATE() function ignores extra characters at the end of the input string when it parses the input string based on the format string. Third, after matching the second comma (,), the STR_TO_DATE() function keeps finding a match for the third format specifier %Y, which is four-digit year e.g., 2012,2013, etc., and it takes the number 2013 as the year value.It takes the number 5 as the month value. Second, because the comma (,) literal character in the format string matches with the comma in the input string, the function continues to check the second format specifier %m, which is a month (01…12), and finds that the number 5 matches with the %m format specifier.Because the number 21 matches with the %d specifier, the function takes 21 as the day value. First, it attempts to find a match for the %d format specifier, which is a day of the month (01…31), in the input string.SELECT STR_TO_DATE( '21,5,2013', '%d,%m,%Y') Code language: SQL (Structured Query Language) ( sql )īased on the format string ‘%d, %m, %Y’, the STR_TO_DATE() function scans the ‘21,5,2013’ input string. The following statement converts a string into a DATE value. Let’s look at some examples of using STR_TO_DATE() function to convert strings into a date and/or time values The STR_TO_DATE() function is very useful in data migration that involves temporal data conversion from an external format to MySQL temporal data format. Check it out the DATE_FORMAT function for the list of format specifiers.
The format string may contain literal characters and format specifiers that begin with percentage (%) character. The STR_TO_DATE() function scans the input string to match the format string. If the input string is illegal, the STR_TO_DATE() function returns NULL. The STR_TO_DATE() function may return a DATE, TIME, or DATETIME value based on the input and format strings. The STR_TO_DATE() converts the str string into a date value based on the fmt format string. The following illustrates the syntax of the STR_TO_DATE() function: STR_TO_DATE(str,fmt) Code language: SQL (Structured Query Language) ( sql ) Introduction to MySQL STR_TO_DATE function Summary: in this tutorial, we will show you how to use the MySQL STR_TO_DATE() function to convert a string into a date time value.
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