So at the time of executing the below query, it will issue the error that the function will not be matching the argument types. In the below example, we have used column name as salesid this column contains the data type as integer. The below example shows that to use the date_trunc function, we need data type of column as date type format. To use the date_trunc function, we need the data type of column as date type format. We cannot use the date_trunc function on a string or numeric data type columns. We can specify the date part as a date type column name or weeks, months, year, day, seconds, minute. To use the date_trunc function in redshift, it will require the date part. Using the function, we can truncate the hour, weeks, months, year, day, seconds, minute etc.
interval: This parameter is nothing but the interval argument, which was we have to pass with the date_trunc function in redshift.īelow is the field or interval argument of precision, which was used to truncate the date using the date_trunc function in redshift.īasically, we can say that the function will work on only the date type column or value.This parameter is also converting the expression into the timestamp format. timestamp: Using the date_trunc function, we can also use the timestamp value, which was used to convert the timestamp column into the timestamp.We have to specify the column name which data type contains the date value. column name: We are using column name to truncate the specified timestamp value from the date column.This is an essential parameter of the date_trunc function in redshift. datepart: Using this parameter, we have to truncate the specified timestamp value.If suppose we want to remove unwanted details from the date and time, then we have using the date_trunc function in redshift. We are using this function for date and time values. date_trunc: This function in redshift is similar to trunc, which was used for numbers.Select date_trunc (‘datepart’, column_name), column_name, …., column_nameN from table_name where condition group by clause order by clause datepart and timestamp, and the return type of date_trunc function in redshift is a timestamp.īelow is the syntax of the date_trunc function in redshift: The date_trunc function contains the two input parameters, i.e. For example, if we want to truncate the date and time value to the nearest hour or week, it is possible to truncate using the date_trunc function. The date_trunc function in redshift is specifically used to truncate the specified precision.
month, week or hour, and it will return the truncated timestamp or interval with the level of precision. Redshift date_trunc function is used to truncate a timestamp or interval based on a specified date part, e.g.
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