I am new to SQL and been given a task. Following are the details: What I have: A C# desktop application for User login and view user status (only two options: user logs in and check status of all u
I want to create a table i开发者_如何学编程n a SQLite database only if doesn\'t exist already. Is there any way to do this? I don\'t want to drop the table if it exists, only create it if it doesn\'t.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or开发者_运维技巧 rhetorical andcannot be reasonably answered in its current form.
I have a Data table whose primary key should be case sensitive. i.e. \'abc\' and \'ABC\' should be consid开发者_C百科ered unique. Hence I have enabled CaseSensitive property of a datatable to true. Bu
Suppose you had the mySQL table describing if you can mix two substances ProductABC ---------------------
I开发者_高级运维s there a way to find the unused tables which are nothing else but rubbish in database? The only way I can think of working out if a table is being used is to use sys.dm_db_index_usage
If I have one table which has a City fie开发者_如何学编程ld and as expected this field will repeat itself so only separate it to another table can be ok for normalizing concepts? I mean separated tabl
Is it actually possible to rotate a T-SQL (2005) so that (for the sake of argument) the values of the first column\'s rows become the titles of th开发者_StackOverflow中文版e output table\'s columns?
I regularly need to delete all the data from my PostgreSQL database before a rebuild. How would I do this directly in SQL?
How can I empty the co开发者_JS百科ntents of all tables in my database in phpMyAdmin without dropping any of the tables in the database?
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