Tag

SQL

Possible injection use keyword

All the web developer, web admin, as well as DB admin are always facing the attacking from all around the world toward their web site, but how to prevent it? Some may use the 3th party software to prevent it, some may just filter all the possible keyword enter by…

SQL Server Do's And Dont's

So, you are now the leader of a SQL Server based project and this is your first one, perhaps migrating from Access. Or maybe you have performance problems with your SQL Server and don’t know what to do next. Or maybe you simply want to know of some design guidelines…

Advance SQL Injection

There are a lot of web site attacking method now a days, one of the most attacking method that we can easily found is the SQL Injection. First of all, before you know about the SQL Injection, you may need to know what is SQL. Structured Query Language (‘SQL’) is…

Convert varchar into math calculation

I try to google, call, msn my friend to find out the solution when I stay back in my office until late night yesterday. But still no luck after few hours of trying. Thinking of gave up when back to office this morning, but one of my friend suddently send…

ISNULL, NULLIF MsSQL function

I just found out this usefu function in MSSQL when I try to Google for the solution to replace the null value with something else. So that I no need to do the checking again in my application. The function is call NULLIF and ISNULL This 2 functions are actually…

Copy data and update table in MsSQL 2000

I try to search around the solution of how to copy and update certain data from table1 to table2. But always cannot remember it and keey search it again and again even I did it several time. So rather then always search it in Google, I just copy it here…