Use LAG and LEAD for monthly comparisons, handle defaults and percent change, choose explicit frames, and detect status transitions.
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MySQL – List User Defined Tables – Two Methods
There are different methods to list out user defined tables in MySQL. We will see two methods in this post.
Let us create the following tables in the database named Test
Tracking Recent Object Changes With modify_date
Use modify_date to find recent SQL Server object changes, compare databases, and understand which audit questions need event capture.
JSON_OBJECT and JSON_ARRAY: Building JSON in SQL Server 2022
Build JSON_OBJECT and JSON_ARRAY values in SQL Server 2022, control null handling, nest arrays, and compare rowset and aggregate output.
A Shrink That Stops Blocking Others: SHRINKFILE WAIT_AT_LOW_PRIORITY
A shrink at 4 PM on Friday can block your whole app. See what the low-priority option does, and why shrinking is still a rare tool.
MySQL – Generate Script for a Table Using SQL
SQL Server needs SSMS to build a CREATE TABLE script, but MySQL can do it in SQL. Here is how SHOW CREATE TABLE returns the script for a table.
Rarely Run Queries in SQL Server: What the First Run Pays
Rarely run queries start with a plan that has left the cache. This test compiles a five table report procedure and measures the compile CPU on the first run, the second run, and a run after the cache was cleared. It also shows how to check whether a plan is still cached.
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