Tip Bank

Question: Is there a limit to the number of connections to an SQL server? If so, how many connections are permitted at one time? Answer: The number of connections is

Question: I am working with a client that has a Powerbuilder application. We need to call that app through a variety of APIs. The client says that they cannot act

Question: What does the PL stand for in PL/SQL? Answer: The PL stands for procedural. SQL is traditionally set-oriented. In many situations, a significant amount of procedural code must also

Question: Is there a limit on the number of tables that can be joined in SQL? Answer: In SQL Server version 6.5 there is an upper limit of 16 tables

Question: How can I display the row number in the results of a SELECT query? For example: Select empname from employees where city = “toronto” I would like to show

Question: Is there any other way apart from using the INSERT INTO command that allows you to append a line to a database? I have a primary key “ID,” but

Question: I need to know how to order by the count of the selected field. For example: Select xxx count(xxx)from prod-tableorder by xxxI’d like to order/rank field xxx highest to

Question: I have a table like this: name cat1 cat2—- —— —–A 1 orangeA 1 orangeB 1 appleB 1 appleB 1 appleC 2 bananaC 2 bananaC 2 bananaC 2 banana

Question: I’m trying to query our Human Resources database to find the number of temporary employees in each department. I’m using the following SQL statement: select count (*)from employeewhere status