Will It Bit?

Louis Davidson wants to see what he can cast to a bit type:

There are no other textual/alpha string values that will cast to a bit value, but the numeric values that will cast to a bit are voluminous (even some that are in string format). Consider the following eight statements:

SELECT CAST(100 AS bit);
SELECT CAST(-100 AS bit);
SELECT CAST(99999999999999999999999999999999999999 AS bit);
SELECT CAST(-99999999999999999999999999999999999999 AS bit);
SELECT CAST(88.999999 AS bit);
SELECT CAST('1' AS bit);
SELECT CAST('2' AS bit);
SELECT CAST('999999' AS bit);

Danged if they didn’t all work, and all return 1.

Check out what else Louis tries to cast to a bit type.

Related Posts

Debugging a Pivot

Ed Elliott takes us through problems with the PIVOT statement: If you have a PIVOT query and it isn’t returning the data you expect, what can you do to troubleshoot it? The thing to do is to break it down into the constituent parts. First, lets take a look at a query and see what […]

Read More

Avoiding DONE Tokens in Loops

Emanuele Meazzo shows one reason why loops can be so much slower in T-SQL: Not everybody knows that SQL Server sends a DONE Token to the client each time that a SQL statement completes (so, everything except variable declarations); For the query above you can basically track it with extended events by tracking the “SQL Statement Completed” […]

Read More

Categories

April 2018
MTWTFSS
« Mar May »
 1
2345678
9101112131415
16171819202122
23242526272829
30