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sql max date null

Добавил Love_Is_Bad, в категорию: Разное (25-03-2014, 15:42)

sql max date null


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My query returns the MAX CLINICALDATE for the group but if the MAX CLINICALDATE is null then it won't return that GROUP SELECT PERSON.MEDRECNO, MEDICATE.INSTRUCTIONS, PERSON.LASTNAME, PERSON.FIRSTNAME, MEDICATE.STARTDATE, MEDICATE.STOPDATE, MEDICATE.STOPREASON, MEDICATE.DESCRIPTION, PRESCRIB. In this page we are going to discuss the usage of SQL MAX() function on date type of column of a table SQL WHERE clause along with the SQL MAX() can be used as a subquery to find the maximum value of a column based upon some condition Used SQL LEFT JOIN command along with the SQL MAX() makes. Here is the maximum value for a datetime datatype in SQL Server: 9999-12-31 23:59:59.997 And the minimum: 1753-01-01 00:00:00.000 The maximum precision for a datetime value is 3 milliseconds. I am trying to do something that seems simple but is causing me some problems I have a one to many relationship between two tables (table1 and table2) table1 contains a facility id and an asofdate column table2 contains mutiple rows for each facility with an npldate column the npldate column.Next we take the MAX of the dates, which if NULL will evaluate as 12/31/2099 and be greater than any other date in our table Wrap that in a CASE statement to replace the date 12/31/2099 back to NULL and group our data by StoreID SELEC. Rarely is the full behavior of the NULL value in SQL taught or described in detail, and with good reason: Some of the SQL rules surrounding NULL can be surprising or unintuitive. I am trying to get the null value in the USAGE_START_DATE column So far, what is i got is the unique max records of those with value in the USAGE START DATE column, and could not find any the. ReservationID Usage Start Date 1 01/01/2001 00:00:00 1 02/01/2001 00:00:00 1 03/03/2001 00:00:00 2 NULL 2 NULL So far with my current code: Here is what I got: ReservationID Usage Start DAte 1 03/03/2001 00:00:00 Here is what I want.wlan 2200bg driverNULLs are usually omitted from any columnar function other than COUNT To include them as well, try a function that assigns a value when null like thi. Learn how to use the SQL MAX function with syntax and examples The SQL MAX function is used to return the maximum value of an expression in a SELECT statement. The SQL MAX aggregate function allows us to select the highest (maximum) value for a certain column The SQL MAX function syntax is very simple and it looks like this. Max with null value : MAX « Aggregate Functions « Oracle PL /.Question: I'm trying to write a case statement that will query the maximum date from a table, and if the result is null- return sysdate select max(case somedate when NULL then sysdate I'm using a backend software to run SQL on Oracle I need to fetch the latest row based on effective date Here's an example table Table ACCOUNTS Application | Sub_category | Account_Reference . MAX ignores any null values For character columns, MAX finds the highest value in the collating sequence MAX is a deterministic function when used without the OVER and ORDER BY clauses. SELECT * FROM (SELECT MAX(col-name) AS MAX_VALUE FROM table-name WHERE 1=0 ) AS A WHERE A.MAX_VALUE IS NOT NULL 01-13-2010, 07:26 PM #3 sql View Profile View Forum Posts Registered User Join Date Jul 2003 Posts 421 Thank you for the reply.

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