Author: sqlitetutor_obng7r

The LAG function is a powerful feature of SQLite that allows you to access data from a previous row in a result set. This can be useful when you need to compare values between rows or when you need to perform calculations based on previous values. Syntax The syntax for the LAG function is as…(Continue Reading)

SQLite’s NTILE function is a powerful tool that allows you to divide a set of ordered rows into a specified number of groups, with each group having an equal number of rows or as close to equal as possible. The NTILE function assigns a group number to each row based on its position within the…(Continue Reading)

SQLite’s DENSE_RANK() function is a powerful tool that allows users to rank rows within a query result set based on specified criteria. DENSE_RANK() is similar to the RANK() function, but it assigns consecutive rank values to ties. This means that if multiple rows have the same ranking value, DENSE_RANK() will skip the next available ranking…(Continue Reading)

SQLite’s RANK() function is a window function that assigns a ranking value to each row within a result set based on a specified order. The RANK() function is useful in scenarios where you need to assign a rank or position to each row based on a particular attribute, such as a sales amount or customer…(Continue Reading)

The ROW_NUMBER() function in SQLite is a window function that assigns a unique sequential number to each row within a specified result set. This function is often used to generate row numbers or rankings for a particular set of data. Syntax The syntax for using the ROW_NUMBER() function in SQLite is as follows: SELECT ROW_NUMBER()…(Continue Reading)

One of the date functions available in SQLite database is the julianday() function, which is used to convert a date and time value to a Julian day number. The Julian day number is a continuous count of days and fractions of a day since noon Universal Time on January 1, 4713 BC (Julian calendar). The…(Continue Reading)