Paul Maxwell questions

Paul Maxwell answers

• a FIFO query in SQL Server
• Columns in rows in big datasets (PostgreSQL) --Transponse?
• how to separated One column to two with cases
• MySQL Sum values by date, compare this year to last year
• Complex MySQL sort
• Impala SQL build columns based on row data and populating columns with additional row data
• Mysql query select every user per date latest record
• Oracle - SQL to concatenate multiple rows [duplicate]
• Knex.js : How to select columns from multiple tables?
• Using string_split to create rows from multiple columns