This example declares a variable named profit for use in a Snowflake Scripting anonymous block: DECLARE profit number(38, 2) DEFAULT 0.0; BEGIN LET cost number(38, 2) := 100.0; LET revenue number(38, 2) DEFAULT 110.0; profit := revenue - cost; RETURN profit; END; Note: If you...
CREATE OR REPLACE PROCEDURE use_sql_variable_proc() RETURNS NUMBER LANGUAGE SQL EXECUTE AS CALLER AS DECLARE sess_var_x_2 NUMBER; BEGIN sess_var_x_2 := 2 * $example_use_variable; RETURN sess_var_x_2; END; Note: If you are using SnowSQL, the Classic Console, or the execute_stream...
Since the Snowflake external table must include those fields, you cannot directly infer the schema from the data as in the earlier example. Run the following command to create a named file format: CREATE FILE FORMAT parquet_snappy TYPE = PARQUET COMPRESSION = SNAPPY; SQL CopyA response similar...
Snowflake User Groups are a global network of community driven chapters where customers can get together to share use cases, check out new features, and learn from one another. Hosted both virtually and in-person, Snowflake User Groups bring together data professionals to connect and grow togethe...
NULIFF example in SQL Server: DECLARE @val1 int=10 DECLARE @val2 int=10 SELECT NULLIF(@val1,@val2) as Val NULLIF in Snowflake: SET val1=10; SET val2=10; SELECT NULLIF($val1,$val2) as Val It is important to mention that although NULL is not considered equal to NULL, the resu...
The next example shows a simple use of the mutex class to serialize access to a “critical section”. The c# console application code can be foundhere. The program performs the division of two random numbers. The operation that follows sets operands, num1, and num2 values to 0. This is...
13.5 Don’t chain variable assignments. eslint: no-multi-assign Why? Chaining variable assignments creates implicit global variables. // bad (function example() { // JavaScript interprets this as // let a = ( b = ( c = 1 ) ); // The let keyword only applies to variable a; ...
.NET Framework Data Provider for SQL Server (pshell example), the parameterized batch will be implemented using sys.sp_executesql system sproc and QO will use histogram data to make a more accurate estimate of the number of qualified rows for the “LastName” predicate. Dynamic index seek ...
Node does I/O in a way that isasynchronouswhich lets it handle lots of different things simultaneously. For example, if you go down to a fast food joint and order a cheeseburger they will immediately take your order and then make you wait around until the cheeseburger is ready. In the ...
The multilevel selection hypothesis has strong historical and theoretical support for many of the major transitions in evolution (for example, origins of cells, chromosomes, eukaryotes, multicellularity and eusocial superorganismality1,8–10), but understanding how higher-level entities originate and ...