Αποτελέσματα Αναζήτησης
9 Απρ 2019 · There are numerous situations in which one would want to insert parameters in a SQL query, and there are many ways to implement templated SQL queries in python. Without going into comparing different approaches, this post explains a simple and effective method for parameterizing SQL using JinjaSql.
28 Νοε 2018 · how to write this in python: This is my code sample: set "Full_Year_Goal" =. case. when ("Start_Date" = '2014-07-27' or "Start_Date" = '2014-07-27') and "End_Date" = '2015-07-25' then 'Y'. when ("Start_Date" = '2015-07-26' or "Start_Date" = '2015-07-27') and "End_Date" = '2016-07-30' then 'Y'.
The SQL CASE statement is a conditional expression that allows you to perform conditional logic in SQL queries. It evaluates a set of conditions and returns a value or performs an action based on the condition that evaluates to true.
13 Ιαν 2020 · In A Simple Approach To Templated SQL Queries In Python, I introduced the basics of SQL templates in Python using JinjaSql. This post further demonstrates the power of Jinja2 within JinjaSql templates using presets, loops, and custom functions.
The SQL CASE Expression. The CASE expression goes through conditions and returns a value when the first condition is met (like an if-then-else statement). So, once a condition is true, it will stop reading and return the result. If no conditions are true, it returns the value in the ELSE clause.
SQL CASE. The SQL CASE statement evaluates a list of conditions and adds a column with values based on the condition. For example, -- add a new column 'order_volume' in the Orders table -- and flag any order greater than 10000 as 'Large Order' -- and smaller than 10000 as 'Small Order' SELECT *, CASE WHEN amount >= 10000 THEN 'Large Order' ...
22 Αυγ 2024 · The CASE statement in SQL is a conditional expression that allows you to execute different logic based on certain conditions within a query. It is used to create new columns, customize values, or modify query outputs depending on specified criteria.
