sql-server-2005

问题 I have a function to return the list of tables having primary key in a datatable, but now the need is to get the table list in the string return type. My method is as follows: public DataTable GetAllPrimaryKeyTables (string localServer, string userName, string password, string selectedDatabase) { // Create the datatable DataTable dtListOfPrimaryKeyTables = new DataTable("tableNames"); SqlConnectionStringBuilder objConnectionString = new SqlConnectionStringBuilder(); objConnectionString

问题 I have a field named: pa_value wich keeps varchar records Now this field contains records like: - 0.5582% - 0.6985% - -0.1589% - 0.9856% - -0.6589% I'm getting these results using the following code: CAST (replace (p7.pa_value ,'%','') AS float (3,0)) as TotalMargin What I'm trying to do is to remove everything and leave just 2 characters(or 3 if there is a -(minus) infront of the string). It should be looking like this: - 55 - 69 - -15 - 98 - -65 I tried to cast it as a float and then to

问题 alt text http://img24.imageshack.us/img24/3365/sqlnuts.jpg well heres the code public void select_table_names() {//start /* display all tables*/ string commandString = null; SqlConnection conn = null; SqlCommand command = null; SqlDataReader reader = null; ArrayList list = new ArrayList(); try { // commandString = "SELECT TABLE_SCHEMA FROM INFORMATION_SCHEMA.TABLES ";// @table "; //string columns; //string tables; //columns = "TABLE_SCHEMA"; //tables = "INFORMATION_SCHEMA.TABLES";

问题 HI, Using Microsoft SQL Server 2005: I have a table "test": id, link_id, name 1 11 test1 2 11 test2 3 11 test3 4 12 test4 Is there a way to query this, and return the results grouped by "link_id", with the names joined? EG, SELECT link_id, name FROM test WHERE ??????? results: link_id, name(s) 11 test1, test2, test3 12 test4 回答1: The blackbox way of doing this is with a CROSS APPLY and FOR XML PATH: declare @t table (id int, link_id int, name varchar(max)) insert into @t select 1, 11, 'test1'

问题 i have a table that has following column Type -------- type 1 type 2 type 3 How can i convert the above to a string like ('type 1', 'type 2', 'type 3') I want to use the output in my t-sql query with IN clause. Something like select * from TableA where SomeColumn IN ('Type 1','Type 2', Type 3') I used to following to come up with output (type 1, type 2, type 3) select '(' + STUFF((select ', ' + Type from TableA for xml path ('')),1,2,'') + ')' But dont know how to insert the single quotes.

问题 i have a table that has following column Type -------- type 1 type 2 type 3 How can i convert the above to a string like ('type 1', 'type 2', 'type 3') I want to use the output in my t-sql query with IN clause. Something like select * from TableA where SomeColumn IN ('Type 1','Type 2', Type 3') I used to following to come up with output (type 1, type 2, type 3) select '(' + STUFF((select ', ' + Type from TableA for xml path ('')),1,2,'') + ')' But dont know how to insert the single quotes.

问题 I'm not an expert in SQL by any means, and am having a hard time getting the data I need from a query. I'm working with a single table, Journal_Entry, that has a number of columns. One column is Status_ID, which is a foreign key to a Status table with three values "Green", "Yellow", and "Red". Also, a journal entry is logged against a particular User (User_ID). I'm trying to get the number of journal entries logged for each Status, as a percentage of the total number of journal entries logged

问题 I have a query that gets break time exceptions. I use Case statements to flag the records. The problem is, I only want to list those that are flagged or have a "1" in the Skipped break, or "ShortBreak" column? SELECT lEmployeeID, sFirstName, sLastName, SUM(TotalHours) AS TotalHours, DATEDIFF(mi, MIN(dtTimeOut), MAX(dtTimeIn)) AS BreakTime, CASE WHEN SUM(ftc.TotalHours) > 6 AND DATEDIFF(mi, MIN(ftc.dtTimeOut), MAX(ftc.dtTimeIn)) < 0 THEN 1 ELSE 0 END AS SkippedBreak, CASE WHEN DATEDIFF(mi, MIN

问题 What is the index creating strategy? Is it possible to create more than one non-clustered index on the same column in SQL Server? How about creating clustered and non-clustered on same column? Very sorry, but indexing is very confusing to me. Is there any way to find out the estimated query execution time in SQL Server? 回答1: The words are rather logical and you'll learn them quite quickly. :) In layman's terms, SEEK implies seeking out precise locations for records, which is what the SQL

问题 We decided to use the registry for handling our deployment with connection strings in our VB.net application. The requirements are: If the program cannot connect to the server, first check the registry for a connection string. IF not, create the folder and fill in the name, type, and data. Make sure its encrypted. I have never edited or created anything in the registry. Where do I start? If anybody has any code samples or links to articles I would really appreciate it. 回答1: It looks like this