Similar to other relational databases, Snowflake support creating temp or temporary tables to hold non-permanent data. i.e. Data which is used in the current session. In this article, we will check how to create Snowflake temp tables, syntax, usage and restrictions with some examples. Snowflake Temporary Tables The temporary table in Snowflake is visible only within the current session. Temporary tables only exist within the session in which they were created and persist only for the remainder of the session. Once the session ends, the system will purge the data…

In general, subquery in a database is a nested query block in a query statement. It is simply a SELECT expression enclosed in a parenthesis. The Subquery may return zero to one or more values to its upper or parent SELECT statements. In this article, we will check Snowflake type of subqueries with an examples. Snowflake Subqueries A subquery in Snowflake is a nested select statement, that return zero or more records to is upper select statement. The outer SELECT statement that contains subquery is sometimes referred to as a…

The pattern matching conditions in Snowflake are used to search a string for a given pattern. You can search for the string by matching particular patterns. Snowflake Pattern Matching A pattern-matching operator searches a string for a pattern specified in the conditional expression and returns either Boolean (true/ false) or matching value if it finds a match. These conditions are particularly important when you need to search string patterns in your database column values. Pattern matching conditions are mainly used in WHERE conditions. Following are the commonly used pattern matching…

Snowflake is a fully managed cloud data warehouse solution provided on AWS, Azure and GCP. You don't have to manage hardware's and your only task is to manage databases and tables that you create as part of your project development. In this article, we will check one of the administrative tasks, generate DDL for Snowflake objects such as view, tables DDL using built-in GET_DDL function. Snowflake Objects DDL using GET_DDL Function Snowflake provides many useful functions to make developers and administrators task easy. One of such function is GET_DDL function,…

Just like translate function, replace function is also one of the widely used string functions in Snowflake. The replace function is commonly used to manipulate the strings or expression. For example, replace the part of sub-string across the input string or expression. In this article, we will check replace function, its syntax, usage with some examples. Snowflake REPLACE Function In general, SQL replace function replaces each instance of a pattern in the input with the value in the string replacement. Snowflake replace removes all occurrences of a specified substring, and…

There are many situations in data warehouse where you need to replace the one character with another. For example, replace special character such as symbol in the input expression with a space or remove it. In this article, we will check how to use the Snowflake TRANSLATE function to replace characters with some examples. Snowflake TRANSLATE Function In general, you can use translate function to translate or replace one or more characters into another set of characters. Snowflake supports the translate function, which performs the same job as translate function…