How can you tell when a Redshift table was created?
text ilike ‘create table%’ order by a. starttime desc; Export the Create Table data history you want to your created S3 bucket with your keys. The below select statement will output the table name created and the datetime it was created.
How do I find the date a table was created?
In the Object Explorer in SQL Server Management Studio, go to the database and expand it. Under the Tables folder select the table name. Right click and select Properties from the menu. You will see the created date of the table in the General section under Description.
How do you make a date in Redshift?
select to_date(‘20010631’, ‘YYYYMMDD’, FALSE); The result is July 1, 2001, because there are only 30 days in June. The following SQL statement converts the string 20010631 to a date: select to_date(‘20010631’, ‘YYYYMMDD’, TRUE);
How do I create a Redshift table statement?
Run the below query to obtain the ddl of a table in Redshift database. select * from admin. v_generate_tbl_ddl where schemaname =’nameofschema’ and tablename=’nameoftable’; If the view v_generate_tbl_ddl is not in your admin schema, you can create it using below sql provided by the AWS Redshift team.
How do you check dependent objects in redshift?
Option 2: Manually Locate & Temporarily Drop Dependent Views
- Step 1: Create a View of Tables and Dependencies. You need to have access to the pg_catalog schema and its tables and be able to run the CREATE VIEW command to complete this step.
- Step 2: Query the View to Locate Dependencies.
- Step 3: Drop the Dependent View.
What is the format to insert date in SQL?
A DATE data type contains both date and time elements. If you are not concerned about the time portion, then you could also use the ANSI Date literal which uses a fixed format ‘YYYY-MM-DD’ and is NLS independent. For example, SQL> INSERT INTO t(dob) VALUES(DATE ‘2015-12-17’); 1 row created.
How do you find the last modified date of a table in Oracle?
How to find when a table was last modified in oracle
- If you want to find, when a table was last modified like insert,update ,delete, then use the dictionary table dba_tab_modifications.
- Insert into test data:
- As you can see, the dba_tab_modification is not showing any rows.
Is date function in redshift?
Many databases such as SQL Server supports isdate function. Amazon Redshift supports many date functions.
How is redshift date difference calculated?
The following example finds the difference, in number of weeks, between two literal date values.
- select datediff(week,’2009-01-01′,’2009-12-31′) as numweeks; numweeks ———- 52 (1 row)
- select datediff(qtr, ‘1998-07-01’, current_date); date_diff ———– 40 (1 row)
Can you create temp tables in redshift?
Creating a Temporary Table. Amazon Redshift allows users to create temporary tables by making use of the temp or temporary keyword while creating new tables for their Amazon Redshift instance. The temporary tables exist only for the duration of the session, and once the session ends, they automatically discard the data …
How do you see Redshift views?
Amazon Redshift doesn’t check for dependencies until the view is queried. To view details about late binding views, run the PG_GET_LATE_BINDING_VIEW_COLS function. When you include the WITH NO SCHEMA BINDING clause, tables and views referenced in the SELECT statement must be qualified with a schema name.
Is there any way to find table creation date in redshift?
It looks like no way to get the creation timestamp of tables in Redshift. One workaround is using STL_DDLTEXT table which records a history of DDLs including CREATE TABLE. In the above case, starttime or endtime will be a timestamp of the test_table table creation.
How many tables can be created in Amazon Redshift?
Amazon Redshift enforces a limit of 20,000 tables per cluster, including user-defined temporary tables and temporary tables created by Amazon Redshift during query processing or system maintenance. Optionally, the table name can be qualified with the database and schema name.
How many UTF-8 characters can you use in Amazon Redshift?
You can use UTF-8 multibyte characters up to a maximum of four bytes. Amazon Redshift enforces a quota of the number of tables per cluster by node type, including user-defined temporary tables and temporary tables created by Amazon Redshift during query processing or system maintenance.
How big is the name of a column in Amazon Redshift?
Name of a column to be created in the new table. The maximum length for the column name is 127 bytes; longer names are truncated to 127 bytes. You can use UTF-8 multibyte characters up to a maximum of four bytes.