How Does Addition Of Two Datetime Data Types Work ?
Apr 3, 2004
SQL Server allows addition of two "datetime" values. For example let d1='April 10,2004' and d2='April 11, 2004'. Now when I execute d1+d2 I get 2108-07-20 00:00:00.000. On what logic is this calculation done.
I am actually looking to derive the same result in Oracle. Hence wanting to know the funda behind this.
On the Microsoft website, I am trying to understand the how the decimal and numeric data types work. It says that valid values for precision are:
- 10^38 +1 through 10^38 - 1
I don't understand the purpose of the negative sign before the first 10.I understand that decimal (p,s) refers to haing a total of p digits (before and after the decimal) and only s number of digits to the right of the decimal. How does the equation above relate to the 's' portion of the syntax?
I have a table with a datetime field 'TheDate'. Currently dates are stored as 'mm-dd-yyyy 00:00:00'. Is there a way to get just the month, day and year parts, '01/01/2008' into the field without changing the field data type to varchar? I'm asking because when I do this:
update TheTable set TheDate = substring(convert(varchar,TheDate,101),1,10)
I'm still getting a date in the format 'mm-dd-yyyy 00:00:00' stored in the table. I'd like to be able to lose the time portion, but I'd like to be able to keep the datetime datatype for date math purposes. Can it be done?
I´m exporting an ms-excel file, then I use a lookup transformation to get a field from a SQL Server 2005 table. The Lookup transformation editor, after selecting the table, shows a warning that says:
at least one mapping between a column from available input columns ans a column from available lookup columns must be defined on the columns page.
So I try to make a relationship in the Lookup transformation editor's column tab where I find the Available input columns and the available lookup columns but I get the following error:
The following columns cannot be mapped: [Department, DEP_CLEGALCODE] One or more columns do not have supported data types, or their data types do not match.
The field in SLQ Server is varchar(10) and the input field is a derived column transformation; I have tried different Data Types but I always have the same error.
The DataFlow is: ExcelSource --> Derived Column --> Lookup --> Flat file destination
Hi everybody, How can I find the difference between two datetime types in SQL 2005 in terms of minutes? e.g. difference between cast('2008-06-13 08:29:55.220' as Datetime) and GETDATE() I tried Select cast(cast('2008-06-13 08:29:55.220' as Datetime) - GETDATE() as float) and it didn't give the desired result. any help is greatly appriciated. devmetz
Hi, I was wondering if you can help. In my vb.net form I am running a query to insert data from one database table to another. However what I need to do is to be able is to add the id of a record I have just created to this insert into sql command. I have managed to use @@ identity to get the id of my first sql insert statement but I am wondering how I can use it in the second insert into and select statement. At the moment my sql statement just copies exactly what is in the select statement. I can't figure out how to add the @@identity value to my second sql statement. My second sql statement is a follows: sql2 = "INSERT INTO ProjectDeliveData(ProjId,ProjDeliveId,RoleId,MeasurementId,ProjDeliveValue, ProjDeliveComments,ProjDeliveYear,FinDataTypeId, FinFileId, ProjDeliveMonthFrom, ResourceId,ProjDeliveDateAdded)" & " select ProjId,ProjDeliveId,RoleId,MeasurementId,ProjDeliveValue, ProjDeliveComments,ProjDeliveYear,FinDataTypeId, FinFileId, ProjDeliveMonthFrom, ResourceId,ProjDeliveDateAdded from ProjectDeliveData where FinFileId=" & strActualFileId I hope you can help Cheers Mark :)
update tblPact_2008_0307 set student_dob = '30/01/1996' where student_rcnumber = 1830when entering update date in format such as ddmmyyyyi know the sql query date format entered should be in mmddyyyy formatis there any way to change the date format entered to ddmmyyyy in sql query?
Advance thanks ....... My table is TimeSheet:----------------------------------- CREATE TABLE [dbo].[TimeSheet]( [autoid] [int] IDENTITY(1,1) NOT NULL, [UserId] [int] NOT NULL, [starttime] [datetime] NOT NULL, [endtime] [datetime] NOT NULL, [summary] [nvarchar](50) NOT NULL, [description] [nvarchar](50) NULL, [dtOfEntry] [datetime] NOT NULL, [Cancelled] [bit] NULL) ON [PRIMARY] My Query is------------------ insert into timesheet (UserId, StartTime,EndTime, Summary, Description,DtOfEntry) values (2, '19/04/2008 2:05:06 PM', '19/04/2008 2:05:06 PM', '66', '6666','19/04/2008 2:05:06 PM')i m not able to insert value Error Message is-------------------------Msg 242, Level 16, State 3, Line 1The conversion of a char data type to a datetime data type resulted in an out-of-range datetime value.The statement has been terminated. can any body give any solution
Hey, I have a big problem that i wanna search data from SQL by DateTime like thatselect * from test where recorddate='MyVariableWhichHoldDate'i use variable that holds Date info.i searched a lot infomation on net but there is no perfect solution. i know why this occur but there is no function to solve this problem. i used a lot of ways. it accept yyyy-mm-dd format but my variable format is dd-mm-yyyyy . is there any function for this problem? and any other solution.thanks for ur attentionregards
Hi, I have a column of type datetime in sqlserver 2000. Whenever I try to insert the date '31/08/2006 23:28:59' I get the error "...datetime data type resulted in an out-of-range datetime value" I've looked everywhere and I can't solve the problem. Please note, I first got this error from an asp.net page and in order to ensure that it wasn't some problem with culture settings I decided to run the query straight in Sql Query Anaylser. The results were the same. What else could it be? cheers, Ernest
I am trying to find a reference for a client that lists the fields available to be substituted into a data driven subscription from the query, along with the expected data types.  For example, the field on whether or not to include a link to the report seems to be expecting a bit data type.I have searched and can't seem to find anything.  I guess I could walk through the interface and try different data types, but if  a list exists, that would be better.Â
While run time these values are lets suppose @SSN = '999-000-000' & @State='ABC'
Now the Result is displayed with the state data Like 'AB' only.
Output: 1 999-000-000 AB
instead it should give system generated error.
Here I have 2 Questions: 1. Why it is taking 1st 2 Charecters? 2. Why it does not have any system generated for length?
I can do validation with Length function for these 2 variables however if have 100 variables then it should not feasible case. So, what is the reason behind?Â
I'm in the process of converting a rather huge VSAM database into a set of SQL tables. I am using the same data names from the mainframe (like XDB-NAME to RDB-NAME). I load the files using Import Export Data and it makes the tables with such column names as col001, col002, col003, etc... and always sets the data types to varchr(255). And I have to cut and paste the data names from the manframe side to the server side (and the data types to.) So, is there an easier way to do this? Or am I doomed to cut-n-paste my days away... Thanks for any help.
I've been writing this stuff for a while, and can't seem to come to the conclusion of how I should be retrieving data and assigning this data to variables.
Since i'm using SQL Server, I'm convinced that I should be using the datareaders GetSqlDouble (or whatever) function, but this would mean i need my local variables to be one of the SQL types. The problem with that is, that there will have to be lots of conversions done by me to be able to use a SQL type in my application.
For instance, I have a class where i'm retrieving dates. In order to retrieve them correctly (Null values included), I need to retrieve them with GetSqlDateTime(), then when it comes time to display the date in a table, i must first check for nulls, then convert to a string. This seems to be very cumbersome. Would I be better off just using GetDateTime(), and the .ToString method, and ignoring Sql Types all together?
so, basically, how are you guys using your sql server data? with the supplied sql types, and doing all of the post-processing work manually? I feel like i'm having trouble conveying my issue...hopefully someone knows what i mean....i'd just like some direction to save trouble in the long run, since i feel like there's got to be a better way...
Is it possible to easily copy data from one table to another if the data types don't match. I know you can do a INSERT INTO table1(col1,col2) SELECT (col2,col7) FROM table2 if the data types match but is there a way to do this if they don't. I'm not trying to copy date times into bit fields or anything. I just have an old table that I built when I really didn't know what I was doing now I at leastthink I have a better understanding of what data types to use, so I was wanting to move the data in the orignal table to my new one. Most of the fields in the olddatabase are text datatypes and the new database is nvarchar(50) data types. Thanks for any suggestions.
I have a really dumb question regarding SQL data types. I have a couple columns in a table that are specified as MONEY. These columns are being read from my web app and displayed on the website for reference when filling in other information.
My problem is that when it is displayed on the website it give four decimal places instead of two. For example I want it to report $33,000.29 but what is actually displayed is $33,000.2965.
How can I set up either SQL or my web app so that it only displays the two decimal places? I've looked into changing the datatype already but SMALLMONEY and MONEY have the same type of decimal values.
I am looking for a chart of SQL Server data types and information about them, such as usage, constraints, etc. Could anyone point me in the right direction?
I'm just getting used to using SQL 7 Database and am looking for some recommendations on what DATA TYPES to use when designing tables.
The site I am working on now uses cold fusion to enter, update, and insert mainly text and articles. Now the problem with the articles is that some of them are pretty big. And when inserting or updating them, if they go over the limit of characters I get an error.
I know in access I used to use the data type "MEMO" and be able to put a large piece of info in that field.
What's the equivalent for SQL server databe?
What are the most used/common or recommended data types that should be used when putting tables together?
hi, i'm trying to build an online forum using sql server 2000 and coldfusion mx.
could anybody help me as to what datatypes i should use for my database fields?
i'll be using 2 simple tables to start with, ie TOPICS and POSTS. each will contain fairly basic information such as name of poster, time, data, title, message etc.
any help would be greatly appreciated. thanx, zaffi.
Which data type do I need to assign to my field to let users enter characters such as +=-_| etc....pretty much every single character from a standard keyboard....
I am pretty new with SQL and was dabbling in a test database that is linked with a software application.
I made a change to a table - Lets call this (Table1). Table1 has a multiple columns.
Column1 is defined as numeric(9) Column2 is defined as varchar(20)
In this case, I wanted to make all values in Column2 = Column1 that did not have a value defined so I ran the following query:
update Table1 set Column2 = Column1 where Column2 = ''
This took effect but the particular software application doesn't recognize these values because they are the wrong data type.
How can I convert all data in a column to varchar(20) if it is another data type (i.e. in this case numeric(9))?
I've tried in Enterprise manager to redesign the table and adjusted the length to 21 and then back and saved it but this did not work. I was looking at Convert and Cast functions but don't know how to write one to accomplish what I need to do here.
Half of the data in Column2 is varchar(20) and half is numeric(9). I want all to be varchar(20).
Im comparing values. if i add the values which is numeric or monetary in the column and if it is greater than zero it will insert to a table, but the datatype of my column([Day 30 AMT] etc. is char. i want to implement like these like these because it cant return a result if i query..
I want to store a decimal value which I get from an execute sql task into a package variable. Which data type should I specify when creating the package variable?
I have successfully made a couple of SSIS packages to read data from a legacy AS400 to SQL Server 2005. These are working fine. I am now working on one that is trying to pull some financial data and I keep getting the following error for the decimal columns:
"The component ciew is unavailable. Make sure the component view has been created. The input column "input column AMT1 (2870) cannot be mapped to "external metadata column AMT1(2852) because they have different data types."
Now I made sure that the data sitting on the AS400 is of type decimal and the SQL server column is the same. What else do I need to look for?
Hello, I am following this article about building an ASP.Net application which uses SQL Express 2005. The document calls for building a couple of tables. One column is identified with data type of "Byte" which are is available for selection within the Visual Studio 2005 interface. The following values show in the drop down of data type in VS2005:
Bigint Binary(5) Bit Char(10) DateTime Decimal (18,0) Float Image Int Money NChar(10) NText Numeric(18,0) Nvarchar(50) Nvarchar(max) Real SmallDateTime SmallInt SmallMoney Sql_Variant Text Timestamp TinyInt UniqueIdentifier Varbinary(50) VarBinary(max) varchar(10) Varchar(max) XML
I choose Char with a size of 1. Would this be correct, or am I missing something?
Is there some type of resource that tells you what all the Data types are and what they are used for. For example, whats the diffrence between Nvarchar and Char? Things like that. Thanks!
Having a slight problem. For whatever reason I had a column setup for nvchar but the only data i have in there is dates (MM/DD/YY) and a whole bunch of NULLs. I wanted to change the datatype to datetime but it gave me an error. I thought it was due to all the NULLs, so I removed all the nulls. It still doesn't work. I get the error : Conversion failed when converting datetime from character string. I don't belive its because I have the data in mm/dd/yy format. I created another table and populated it with mm/dd/yy data as nvchar (50) and then converted to datetime and it worked fine. any ideas?