If I have the name of the month, how can I have the first and last day of that month in SQL? I have this query to returns the month names: Result: Now, how can i get the first and last day of that months? changing the query. Answer Try this :- Result :- Result obtained taking the help from
Tag: sql
SQL BETWEEN for text vs numeric values
BETWEEN is used in a WHERE clause to select a range of data between two values. If I am correct whether the range’s endpoint are excluded or not is DBMS specific. What I can not understand in the following: If I have a table of values and I do the following query: The query returns as results rows inclu…
Mysql: Update field of most latest record
I’m trying to update the latest record where name is John (John has multiple records but different ID) but I seem to be in a bind. What’s wrong with my query? UPDATE messages_tbl SET is_unread=1 …
Update only time from my Datetime field in sql
I have a date 2013-12-14 05:00:00.000 in my table. Now i want to update only time of that date. E.G to 2013-12-14 04:00:00.000 Is there any query to update only time from datetime field? Answer Or this
PostgreSQL – order by an array
I have 2 tables – course that contains id and name of the courses and tagCourse that contains tags for each course. I’d like to write a function that searches courses by given array of tags and returns them ordered by quantity of matching tags. However I don’t know how to write it correctly …
Upgrading a varchar column to enum type in postgresql
We have a varchar column in a table, that we need to upgrade to enum type. All the values in the varchar column are valid values in the enumeration. There is no null values in the varchar column. …
Find start and end dates when one field changes
I have this data in a table When ever the value in FIELD_D changes it forms a group and I need the min and max dates in that group. The query shoud return The examples that I have seen so far have the data in Field_D being unique. Here the data can repeat as shown, First it is “N” then
MySQL concatenation operator
I don’t know concatenation operator for MySQL. I have tried this code for concatenation: SELECT vend_name || ‘ (‘ || vend_country || ‘)’ FROM Vendors ORDER BY vend_name; But it didn’t work. Which …
Concatenate records and GROUP BY in Access
I have a table like this: title part desc Blah This 1 This begins the Blah This 2 example table. Some …
How to sync two MySQL tables?
If I have a table (lets call it orders) on one server of mine, named, for example, local. And I have this same table one another server of mine, named, for example, remote. My problem is, what is the best way to sync these two tables? I would like a solution that replaces a registry if the local is different