I am using a subquery in an UPDATE: UPDATE tableA SET x,y,z = ( (SELECT x, y, z FROM tableB b WHERE tableA.id = b.id
i\'ve a query that is supposed to return the sum for \"status\"-duration entries. The duration is calculated by using datediff(n, datestamp, (subquery that returns the datestamp ending the current sta
In my project, Lines can be grouped and a Group has a type which can be either Crossing (1) or Parallel (2). I need to find all lines which has at least one group of a 开发者_JAVA技巧specified type (i
I\'m creating an SQL statement that will return a month by month summary on sales. The summary will list some simple columns for the date, total number of sales and the total value of sales.
I have a some SQL that I want to use with ZendFW, but I can\'t get it working and开发者_如何转开发 it\'s driving me crazy. I get the correct result with this query:
I have a table where I have added a new column, and I want to write a SQL statement to update that column based on existing information.Here are the two tables and the relevant columns
I need to do a big query, but I only want the latest records. For a single entry I would probably do something like
I\'d like to use MySQL in this form: SELECT 1 AS one, one*2 AS two because it\'s shorter and sweeter than
I am currently working on a particularly complex use-case. Simplifying below :) First, a client record has a many-to-one relationship with a collection of services, that is, a single client may have
I have a monthly table (only holds rows with first day of month, and unique constraint so only one of each) and a daily table with similar information for each day (same deal, only one per day):
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