WebOct 6, 2024 · Another way is to create a duplicate table and swap, as others have suggested. However, constraints and grants must be kept. One way to do this is: CREATE TABLE new_table LIKE old_table COPY GRANTS; INSERT INTO new_table SELECT DISTINCT * FROM old_table; ALTER TABLE old_table SWAP WITH new_table; The code above … WebMay 23, 2024 · Using create or replace table in Snowflake is simple to achieve using SQL the Snowflake UI Stephen Allwright 23 May 2024 Using create or replace table in Snowflake only requires a simple SQL query. In it’s simplest form, all you need to do is run create or replace table table_name (column_name number).

Using Snowflake Alter Table: Easy Steps - Learn Hevo

WebNov 7, 2024 · As snowflake has to load all the data. You will get a column data to row data ratio improvement by using select column1, column2 from really_large_table where column1 = value; now only two columns of data need to be read form the data store. Maybe you are looking for data where the value is > 100 because you think that should not happen. Then WebAug 3, 2024 · 0. ALTER TABLE SWAP command will swap the contents and metadata between two specified tables, including any integrity constraints defined for the tables … current time at bethlehem pa 18020

ALTER TABLE command in Snowflake - SQL Syntax and Examples

WebHow to Duplicate a Table in Snowflake Sometimes you need to duplicate a table. There are various methods, depending on your intent. Copy both the entire table structure and all the data inside: --method 1 create table sessions_copy clone sessions; --method 2 create table sessions_copy as select * from sessions; Webalter table my_table_dedup swap with my_table DROP TABLE MY_TABLE_DEDUP If *only* the key is duplicated, and within each key there are one or more other columns that can be used to form a composite key, then you can build a temp result that contains the composite key that you want to maintain (within each key) and then delete all others. WebJan 6, 2024 · Snowflake Transient Tables are comparable to Permanent Tables, except that they don’t have a fail-safe period. As a result, Transient Tables are meant for temporary … current time at cst usa