问题
I like to use SQL Server 2005 templates to run frequently used queries. You can include parameters in your templates using this syntax:
<LastName, varchar, 'Bob'>
I have a query that needs the less than or equals to operator <= but unfortunately the SQL Server 2005 template interprets that as the start of a parameter. I have been unable to find a way to use the < (less than character) as a literal.
回答1:
when I Specify Values for Template Parameters, this runs fine for me:
select * from <xyz, varchar,YourTable> WHERE ID<=1000 AND ID>=20000
perhaps you do not have every parameter's "<" and ">" paired properly
EDIT I see the problem now:
SELECT * FROM <xyz, varchar,YourTable> WHERE ID<=1000 AND ID>=20000 AND <xyz2,varchar,YourColumn> IS NOT NULL
results in:
SELECT * FROM YourTable WHERE IDYourColumn IS NOT NULL
try making the "<" character into a parameter, like this:
SELECT * FROM <xyz, varchar,YourTable> WHERE ID<lessthan,char,<>=1000
AND ID>=20000 AND <<xyz2,varchar,YourColumn> IS NOT NULL
it results in:
SELECT * FROM YourTable WHERE ID<=1000
AND ID>=20000 AND YourColumn IS NOT NULL
OR split the lines, line breaks seem to make a difference:
SELECT * FROM <xyz, varchar,YourTable> WHERE ID<=1000 AND ID>=20000
AND <xyz2,varchar,YourColumn> IS NOT NULL
results in:
SELECT * FROM YourTable WHERE ID<=1000 AND ID>=20000
AND YourColumn IS NOT NULL
回答2:
With template
select top 10 * from syscolumns
where <xtype, varchar(128), xtype <= 60>
If you select (menu) Query > Specify Values for template parameters, the default value for replacement is "xtype <= 60", which is correct, and upon substitution, the resulting query text is
select top 10 * from syscolumns
where xtype <= 60
which is exactly what one would expect. In other words, it does not appear to be the case that the "<" symbol needs to be escaped. However, ">" is more problematic:
select top 10 * from syscolumns
where <xtype, varchar(128), xtype >= 60>
This will fail when opening the "specify values" dialog. However, in this instance, it is fine to specify
select top 10 * from syscolumns
where <xtype, varchar(128), value>
and enter
xtype >= 60
in the "value" field for replacement. This produces
select top 10 * from syscolumns
where xtype >= 60
which is again as one would expect. So it would seem that the default value for replacement may not contain a ">".
来源：https://stackoverflow.com/questions/1561190/sql-server-templates-how-do-i-escape-the-less-than-character