sql-server-2005

问题 In a pretty typical scenario, I have a 'Search' text box on my web application which has user input passed directly to a stored procedure which then uses full text indexing to search on two fields in two tables, which are joined using appropriate keys. I am using the CONTAINS predicate to search the fields. Before passing the search string in, I do the following: SET @ftQuery = '"' + REPLACE(@query,' ', '*" OR "') + '*"' Changing the castle to "the*" OR "castle*" , for example. This is

问题 I need to store binary files in a varbinary(max) column on SQL Server 2005 like this: FileInfo FileInfoId int, PK, identity FileText varchar(max) (can be null) FileCreatedDate datetime etc. FileContent FileInfoId int, PK, FK FileContent varbinary(max) FileInfo has a one to one relationship with FileContent. The FileText is meant to be used when there is no file to upload, and only text will be entered manually for an item. I'm not sure what percentage of items will have a binary file. Should

问题 I need to store binary files in a varbinary(max) column on SQL Server 2005 like this: FileInfo FileInfoId int, PK, identity FileText varchar(max) (can be null) FileCreatedDate datetime etc. FileContent FileInfoId int, PK, FK FileContent varbinary(max) FileInfo has a one to one relationship with FileContent. The FileText is meant to be used when there is no file to upload, and only text will be entered manually for an item. I'm not sure what percentage of items will have a binary file. Should

问题 I have a server (SQL Server 2005) with multiple archive databases (1 per quarter stretching back 8 years) that are all structurally identical. I frequently need to query back over a certain date range that spans n databases, usually n is small 1-3 but it's possible I need to query the whole set. Any thoughts n the most efficient way to do this both from a code cleanliness and a performance perspective? Current solutions are rather ad-hoc, there are a collection of views that span all or just

问题 how do you create a new database user with password in sql server 2005? i will need this user/password to use in the connection string eg: uid=*user*;pwd=*password*; 回答1: CREATE LOGIN [user] WITH PASSWORD='password', DEFAULT_DATABASE=[your_db], CHECK_POLICY=OFF GO CREATE USER [user] FOR LOGIN [user] EXEC sp_addrolemember N'db_datareader', N'your_db' EXEC sp_addrolemember N'db_datawriter', N'your_db' GO Where CHECK_POLICY=OFF switches off password complexity check, etc 回答2: As of SQL Server

问题 Suppose I store employee data in a xml column in my log table. Sometimes data is also updated in the xml column from a stored procedure. Here is the sample example DECLARE @XML1 XML DECLARE @XML2 XML SET @XML1 = '<NewDataSet> <Employee> <EmpID>1005</EmpID> <Name> keith </Name> <DOB>12/02/1981</DOB> <DeptID>ACC001</DeptID> <Salary>10,500</Salary> </Employee> </NewDataSet>' SET @XML2 = '<NewDataSet> <Employee> <EmpID>1006</EmpID> <Name> keith </Name> <DOB>05/02/1981</DOB> <DeptID>ACC002</DeptID

问题 Is there anything else that the code must do to sanitize identifiers (table, view, column) other than to wrap them in double quotation marks and "double up" double quotation marks present in the identifier name? References would be appreciated. I have inherited a code base that has a custom object-relational mapping (ORM) system. SQL cannot be written in the application but the ORM must still eventually generate the SQL to send to the SQL Server. All identifiers are quoted with double

问题 We have a SQL Server 2005 database for which we want to improve performance of bulk delete/insert/selects and I notice it uses decimal(18,0) for its primary keys. I understand this will give us many more values than bigint but was hoping it might be a quick win and should last us for many million years of growth by my calculations. I see in the .net docs decimals take 16 bytes instead of the 8 required by longs but in SQL Server it looks like bigint take 8 bytes but the decimal(18,0) takes

问题 Why is it necessary to have a primary key on a column of one table to which a column of the other table having foreign key references. create table D(Did int) create table E(Eid int foreign key references D(Did)) The above query gives error: There are no primary or candidate keys in the referenced table 'D' that match the referencing column list in the foreign key 'FK__E__Eid__79C80F94'. 回答1: Easy. If you have 2 values the same in the parent table, how do you know which one to associate child

问题 Why is it necessary to have a primary key on a column of one table to which a column of the other table having foreign key references. create table D(Did int) create table E(Eid int foreign key references D(Did)) The above query gives error: There are no primary or candidate keys in the referenced table 'D' that match the referencing column list in the foreign key 'FK__E__Eid__79C80F94'. 回答1: Easy. If you have 2 values the same in the parent table, how do you know which one to associate child