Time zone values are ignored from the input value. The fully timestamp values contains default value as (00) for missing seconds, minutes, and hours.At the time of insertion date into the timestamp datatype column, the value of date will be implicitly converted into the fully timestamp value.Timestamp datatype in redshift will stores the maximum values up to the precision of six digits in fractional seconds.Storage size of timestamp and timestamptz (timestamp with timezone) datatype is the same as 8 bytes.The range of timestamp datatype in redshift is 4713 BC to 294276 AD, also the storage size of timestamp data type is 8 bytes.Timestamp – This is the datatype that was used in redshift to store the date in date and time format.After adding a new column to the table we have assigned the datatype as a timestamp. Add column – This command is used to add a column in redshift.We can change the column datatype as a timestamp by using alter table command. Alter table – This command is used to alter the table to add and change the data type of column.We can assign data type as per the data which was we have loaded into the table. Datatype – This is defined as datatype which was we have to assign to the column at the time of table creation.We can also assign different datatype to the different columns. Column name – This is nothing but the name of the column on which we have defined the data type as timestamp.Table name – This is the name of the table on which column we have assigned the data type as a timestamp.We can assign the timestamp datatype to one or multiple columns in redshift.

Create table – This command is used to create the table in redshift using this command we have assigning the timestamp data type to the newly created column.

Parameter description syntax of timestamp in redshift.

Select CURRENT_TIMESTAMP :: timestamp - It will also showing the current date and time.

Select now () :: timestamp - Showing current date and time.

Change the datatype of a column as timestamp –ĪLTER TABLE name_of_table ALTER COLUMN name_of_column type timestamp.

Assign the datatype as timestamp at the time adding new column to the table –ĪLTER TABLE name_of_table ADD COLUMN name_of_column timestamp.

Assign timestamp datatype to the column at the time of table creation –Ĭreate table name_of_table (column_name1 datatype, column_name2 datatype, column_name3 timestamp, …., column_nameN timestamp).

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