sql

How do I join (merge?) several tables?

I've got three tables AUTHOR_TABLE ------------- AUTHOR_ID (PK) AUTHOR_NAME 1 me 2 you ARTICLE_AUTHOR_TABLE ------------- AUTHOR_ID ARTICLE_ID 1 100 2 101 EVENT_AUTHOR_TABLE ------------------------------------------ AUTHOR_ID EVENT_ID 1 200 1 201 All ...

Need help in coding for transaction table

Hi all, I need help in how to transfer data from one account no to another account no in single table. In this customer will get his account no from dropdown list(it will come automitically thru his session) and customer has to write the destination account no in textbox and the amount he is transferring will be written in another textbo...

Comma separated Values - Problem

I asked a question before and received this answer: SELECT table1.id, GROUP_CONCAT(table2.values) FROM table1 INNER JOIN table2 ON FIND_IN_SET(table2.id, table1.nos) GROUP BY table1.id But I have another field nos1 (with multiple values) in table1 that also pointing to table2, I use it like this : SELECT ta...

ASP.NET - printing a label only sometimes in a DataList with ItemTemplate

I'm working on a project which will pull data from two different tables, Events and Travel Times. I'm displaying it in a DataList using ItemTemplate. Almost all of the information displayed in the DataList will be from Events and will always be displayed. The data from Travel Times will only be shown if it falls within a certain range of...

Conditionally branching in SQL based on the type of a variable.

Hi everyone. I'm selecting a value out of a table that can either be an integer or a nvarchar. It's stored as nvarchar. I want to conditionally call a function that will convert this value if it is an integer (that is, if it can be converted into an integer), otherwise I want to select the nvarchar with no conversion. This is hitti...

Loop through columns SQL

Hello everyone, I'm looking for a way to loop through the columns of a table to generate an output as described below. The table looks like that: ID Name OPTION1 OPTION2 OPTION3 OPTION4 OPTION5 1 MyName1 1 0 1 1 0 2 MyName2 0 0 1 0 0 And the output looks like that: MyName...

How do you remember/manage your SQL examples ?

I currently have a SQLTIPS.sql file, which lives on my hard disk, at work. I'll add any new or nice examples, of writing good SQL, to this file. Now it's becoming hard to manage, and I have to search for specifics, in my own file! I am looking for something that can be loaded in SQL Enterprise Manager quickly, something similar to V...

Stored Procedure with optional "WHERE" parameters

Hi to all. I have a form where users can specify various parameters to dig some data (status, date ecc). I can producea query that is: SELECT * FROM table WHERE: status_id = 3 date = other_parameter = etc. Each WHERE is optional (i can select all the rows with status =3, or all the rows with date = 10/10/1980, or all the rows with st...

Performance Implications of Comments in SQL Stored Procedures

Recently at my day-job were were instructed that any comments regarding our stored procedures MUST NOT exist inside the stored procedure and rather Extended Properties must be used. In the past we used something like this. /* * NOTE: Auto-Generated Procedure DO NOT MODIFY */ CREATE PROCEDURE dbo.MyProc AS SELECT * FROM MyTable GO T...

SQL query for generating given data

I have a table called student with two columns: JoinDate DATE EmployeeName STRING The contents of the table are as follows: EmployeeName | JoinDate ----------------+----------------- jaison | 1-jan-2008 robin | 2-feb-2008 binoy | 3-mar-2008 rahul | 4-feb-2008 I am looking to prepare the fol...

Most efficient way to select 1st and last element, SQLite?

What is the most efficient way to select the first and last element only, from a column in SQLite? Thanks. ...

changing sorting criteria after the first result

I am selecting from a database of news articles, and I'd prefer to do it all in one query if possible. In the results, I need a sorting criteria that applies ONLY to the first result. In my case, the first result must have an image, but the others should be sorted without caring about their image status. Is this something I can do with...

Best way to check whether a row has been updated in SQL.

I have an update statement which updates a table. And there is a column records the last modified time. If the row data has not been changed, I don't want to change the last modified date time. What is the best way to check whether an update statement will change the row of data or not. Thanks, ...

Count DateDiff Exceeding A Specified Value

I am working in SQL 2005 (I think), SQL Query Analyzer Version SQL 8.00.760. I would like to write a query that returns a count into a Crystal Report from a table only if the due date exceeds 14 days based on the end date in the report search. Based on my very limited understanding of SQL, I have come up with the following, which has p...

Fetching a MySQL SET column as a list of integer offsets

I have a table in a MySQL database defined similar to the following: CREATE TABLE doc_types ( id INT UNSIGNED PRIMARY KEY, types SET('foo','bar','baz','quux',...) NOT NULL ) I would like to get the value of the types column as a comma-separated list of 1-based integer offsets into that list of set values, e.g. "1,3,4" for a...

Nothing is extracted from the SQlite table ?

void max_min(sqlite3 *db) { //call back********* int i, ncols; sqlite3_stmt *stmt; char *sql; const char *tail; char *zErrMsg = 0; int rc; //****************** //min/max variables char min[20]; char max[20]; //we want only the min and max value of this table sql = "SELECT MIN(Start...

Count DIFFDATE Exceeding A Specified Value - Step 2

Further to my earlier question. Now I have two different queries that work. The first query returns a result of 5092 and the second returns a result of 1885 adding up to 6977. I would like to combine them into one query to return a result of 6977. How can I make one query count the number of conditionassessmentdates that are active, ...

ASP.NET store Image in SQL and retrieve for Asp:Image

I am looking to fileupload a picture jpeg,gif,etc into an SQL database on an updateprofilepicture page. Then on the profile page, I want to retrieve the image from an sql database and have it show up in an Asp:Image control. I have much code trying to do this and it doesn't work. The table contains a column of type Image. ...

What are some ways I can improve the performance of a regular expression query in Postgresql 8?

I'm performing a regular expression match on a column of type "character varying(256)" in postresql 8.3.3. The column currently has no indices. I'd like to improve the performance of this query if I can. Will adding an index help? Are there other things I can try to help improve performance? ...

String literals not supported in stored procedure calls to DB2 for z/OS

I'm getting the error below when calling a simple SP from the Rational Application Developer Data Perspective when connecting to a DB2 DB instance running on z/OS. Also when calling from SQuirreL. Straight SQL queries run no problem. The query also works fine when called from my JAVA code. 'Error: [ibm][db2][jcc][10243][10940] Stri...