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First of all you need to convert DateTime to VARCHAR if you want to perform String operation on it. Secondly, you don't need to look for SUBSTRING. Just update DateTime column using DateTime format. UPDATE TABLE SET ColumnName = CAST('Whatever Date You Want' AS DATETIME)
The REPLACE() function replaces all occurrences of a substring within a string, with a new substring. Note: The search is case-insensitive. Tip: Also look at the STUFF() function.
In this tutorial, you will learn how to use the SQL Server REPLACE() function to replace all occurrences of a substring by a new substring within a string.
24 sty 2022 · The REPLACE SQL function is used to replace a string or substring of a string with another string in a T-SQL script, SELECT statement, UPDATE statement, SQL query or stored procedure in a Microsoft SQL database.
Transact-SQL reference for the REPLACE function, which replaces all occurrences of a specified string value with another string value.
13 lis 2023 · SQL Server provides a number of options you can use for formatting a date/time string in SQL queries and stored procedures either from an input file (Excel, CSV, etc.) or a date column (datetime, datetime2, smalldatetime, etc.) from a table.
26 maj 2015 · There are at least a couple of great SQL SERVER functions (CAST and CONVERT) for converting between date formats and numerous MSSQLTips articles illustrating how to process dates with these functions; see the Next Steps sections for specific tips on the functions and additional MSSQLTips resources.
