Is it true that only beginners need to write comments in SQL? No, even experienced developers benefit from well-written comments, especially when working on complex queries or revisiting code after a long time. Topics SQL Data Analysis
In order to bring the proper clarity and to make the code readable, comments are added to the code. Comments are added by the developer or the programmer of the code to make it understandable for everyone. We also usually use comments in the psql so that the queries and commands are more...
So when you write the comment next to \ECHO, it will print that comment in the console. Hence, a beautiful way to add comments in PSQL. Use \WARN as an Alternative to the \ECHO Command in PSQL for Commenting Another command that can print comments in the console is \WARN. It is ...
MySQL comments are most often used in conjunction with languages like SQL and PHP where we can insert them into a text file or script using the comment function * / (e.g., /* This is my comment */). They’re typically just as easy to use anywhere else, too. How to write a comme...
In SQL Server we have a procedure called "" for adding comments to tables and columns. Following is the sample script: -- Adding a comment to a column Col1 for the table LangTest EXEC sys.sp_addextendedproperty@name=N'MS_Description',@value=N'hello col1' ,@level0type=N'SCHEMA',@lev...
7 rows in set (0.00 sec) Say you have to run this query on a regular basis. This could become tedious to have to write out the query repeatedly, especially when it comes to longer and more complex query statements Also, if you had to make slight tweaks to the query or expand on it...
This article intends to give some beneficial suggestions that help to write a more readable T-SQL query. Introduction The major expectation from a code is that it works properly and generates the expected outputs. However, this expectation is not a sufficient criterion to say that this code is...
SQL - The field contains NULL, 0 or 1 - i want to see anything but 1 - how to write Hi I only want the column to bring back 0 or NULL - ive tried <>1 but that only brings back 0 IN (N' ', N'0') but doesnt like it,...
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As you can see, we have a complex query and 2 rows in the result. Without any comments, we can’t easily say what does this query does and how it works. Let’s change that now. How to Write a Complex SELECT Query & Where is the Data? We’re back to the original question. No...