Let’s assume you have a database “EMPLOYEE” and schema “PUBLIC” with table “EMP“. And the table has the following structure. We use this table to explain with examples. Snowflake SQL query SELECT * FROM EMPLOYEE.PUBLIC.EMP returns the contents of theEMPtable. Duplicate table from a...
As we can see, SQL Developers, who switch to working with Snowflake can find some NULL-handling functions that SQL Server does not provide. However, the logic provided with these functions can be easily converted to SQL code in different ways as shown in the examples. Next Steps Ch...
Examples First day of the week Most week-related functions are controlled only by theWEEK_STARTsession parameter. The function results differ depending on how this parameter is set: Function Parameter set to0(default / legacy behavior) Parameter set to1-7(Monday - Sunday) ...
Example SQL query for checking duplicates: SELECT COLUMN_NAME, COUNT(*) AS TOTAL_ROWS, COUNT(COLUMN_NAME) AS NON_NULL_ROWS FROM YOUR_TABLE_NAME GROUP BY COLUMN_NAME; Step 5: Consider Automation Tools like Snowflake Tasks or external orchestration platforms like AWS Step Functions, Azure Logic...
Examples The following demonstrates the use of the functions YEAR, MONTH, DAY, DAYOFWEEK, DAYOFYEAR, and QUARTER: SELECT '2013-05-08T23:39:20.123-07:00'::TIMESTAMP AS tstamp, YEAR(tstamp) AS "YEAR", QUARTER(tstamp) AS "QUARTER OF YEAR", MONTH(tstamp) AS "MONTH", DAY(tstamp) AS "...
IFNULL and NVL in the Snowflake code examples above can be rewritten in the following way: SET val=NULL; SELECT COALESCE($val,0) as Val NULLIF NULLIF is a valid function in SQL Server as well as in Snowflake. It accepts two parameters and returns NULL if the values of these two para...
Snowflake Standard SQL Our ODBC Driver supports all of the Snowflake standard SQL expressions, including functions and operations, and all of the Snowflake data types. Below are some examples of supported Snowflake functions: Aggregate functions Array functions Datetime functions Geography functions ...
preCopyScript Specify a SQL query for the Copy activity to run before writing data into Snowflake in each run. Use this property to clean up the preloaded data. No importSettings Advanced settings used to write data into Snowflake. You can configure the ones supported by the COPY into comm...
Snowflake offers support for the following constraint functionalities from theANSI SQL standard: PRIMARY KEY UNIQUE NOT NULL FOREIGN KEY A table can possess multiple foreign and unique keys, but only one primary key. All foreign keys need to reference a corresponding unique or primary key that mat...
Query The SQL query to read data from Snowflake. < name of your source query> Yes query Storage integration Specify the name of your storage integration that you created in the Snowflake. For the prerequisite steps of using the storage integration, see Configuring a Snowflake storage integration...