I'm struggling on something very simple. I'm trying to assign the results of a boolean expression to a BIT
variable.
Basically I would like to do something like:
DECLARE @is_search_term_empty BIT SET @is_search_term_empty = (@search_term = '')
where @search_term
is a NVARCHAR(128)
declared somewhere else in the code.
I cannot work out the syntax to evaluate something and assign it to a BIT
variable, ie:
SET @is_search_term_empty = (1 > 2)
Thanks.
To insert a new value to the BIT column, use INSERT statement: INSERT INTO table_name (bit_column) VALUES (1); You can also use TRUE and FALSE as the inputs for the BIT columns, SQL Server will automatically convert them as follow: TRUE will be converted to 1.
Data Type Conversions using the SQL CAST Function. For example, if we want to cast a Boolean value from the bit data type to a tiny int data type, we can do it with a valid expression such as: DECLARE @mybit BIT = 1; SELECT Test = CAST(@mybit AS TINYINT); Not every data type can be converted to all possible data types.
1 Answer. Show activity on this post. Bits in SQL Server are always stored as 1 or 0 in a bitmap. The "Edit Table" option in SSMS just translates this to True or False for presentation purposes, this is nothing to do with how it is actually stored.
SQL Server BIT data type is an integer data type that can take a value of 0, 1, or NULL . The following illustrates the syntax of the BIT data type: BIT. SQL Server optimizes storage of BIT columns. If a table has 8 or fewer bit columns, SQL Server stores them as 1 byte.
You can do this with a CASE
statement:
DECLARE @bitvar BIT DECLARE @search_term varchar(128) set @search_term = 'abc' SET @bitvar = CASE WHEN (@search_term = 'abc') THEN 1 ELSE 0 END select @bitvar
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