How To Give 4 Default Values To A Column
I need to create a table in which a column is to be specified with 4 default values. Is it possible?
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Not Able Give Default Value For DATE Field
I would like to specify a default value for "DATE" datatype as a system date. But i could find from the help tutorial, "default value cannot be added for a DATE datatype". But i could specify in Oracle. I have found below statment from the help documents. "The DEFAULT value clause in a data type specification indicates a default value for a column. With one exception, the default value must be a constant; it cannot be a function or an expression. This means, for example, that you cannot set the default for a date column to be the value of a function such as NOW() or CURRENT_DATE. The exception is that you can specify CURRENT_TIMESTAMP as the default for a TIMESTAMP column." Why cant we use a functions or variable values in date? Is this the limitation or didnot explore this functionality yet? Is this limitation applicable for only DATE type or any other datatypes? I have such a situation to use this "default" feature for a date column with value as system date. is there a way to do that?
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Date/Time As A Default Values For A Table Column
I am new to mySQL, so this question might be simple.I want to add a default value to a column that is the current date/time. I am using the mySQL Administrator and will not allow me to use a function like CURRENT_TIMESTAMP() or NOW() as a default value. I used to do this with other databases (I always add a column to all of my tables called InsertDateTime and UpdateDateTime. It helps to track down data entry problems)
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Default Field Values
I am trying to devise a procedure to delete rows wherein all the fields have been set to their default values (either null, or in the case of a not null default value for a row, that default value). Is there a means in MySQL which allows me to obtain what the defaults are for all fields in a table?
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Functions As Default Values
I am trying to use a function as a default value for a column but do not seem to get the desired result. I want to use the NOW() function for a last_updated column, here is my code... CREATE TABLE test_table ( last_updated datetime NOT NULL default `NOW()` ) TYPE=MyISAM; This gives an error; CREATE TABLE test_table ( last_updated datetime NOT NULL default 'NOW()' ) TYPE=MyISAM; Now the table shows a default value of 0000-00-00 00:00:00, when I add a new row the value of last_updated is also 0000-00-00 00:00:00. I am using MySQL 3.23.37,
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Default Values Not Working
I have a table which looks like this /* Formatted on 2006/09/18 20:37 (QP5 v5.50) */ CREATE TABLE `user` ( `USER_ID` int(15) NOT NULL auto_increment, `FIRST_NAME` varchar(255) default ' ', `LAST_NAME` varchar(255) default ' ', `ADDED_BY` int(15) default '0' ) ENGINE=InnoDB DEFAULT CHARSET=latin1; There is a default value on the nullable column ADDED_BY. I explicitly issue a update sql to verity the default values are working UPDATE USER SET ADDED_BY = NULL; At the end of statement execution - I would expect the value in the table to be 0 but the database still shows null.
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Need Help - Mysql 5 Default Values
I created a program for mysql 3.23... We launch on tuesday... Problem is we are installing it on laptops and are tech guy installed mysql 5 instead of the version we currently use. In the mysql 3 when you make a query if there is a null value in the query it automatically places the default value into the table. I.E. Query: INSERT INTO someTable SET someCol='' Column Default: 'a' In mysql 5 it throws an error saying the column value is out of range if your trying to insert a null value. I need it to automatically insert the default value. Is there a way to change the configuration of mysql to automatically insert the default value if a null value is encountered (and the column is a not null setting). This is really really important,
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Are Default Values Necessary/good?
Any thoughts on whether or not every column should have a default value? phpmyadmin seems to add them to everything, but I'm not sure if they are really necessary in a well structured database. All of the defaults end up being empty strings or 0 so php wont treat that any differently from a NULL value when the data is retrieved, will it? 2 examples: with defaults: CREATE TABLE address ( ID int(11) NOT NULL auto_increment, Street_1 varchar(64) default '', Street_2 varchar(64) default '', Street_3 varchar(64) default '', City varchar(64) default '', State smallint(6) default Ɔ', Country smallint(6) default Ɔ', Zip varchar(8) default '', PRIMARY KEY (ID) ) ENGINE=InnoDB; without: CREATE TABLE address ( ID int(11) auto_increment, Street_1 varchar(64), Street_2 varchar(64), Street_3 varchar(64), City varchar(64), State smallint(6), Country smallint(6), Zip varchar(8), PRIMARY KEY (ID) ) ENGINE=InnoDB;
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How To Set Default Values For Timestamp Fields
what is the syntax for specifying the default values for timestamps in MySQL in the CREATE TABLE command? I have 2 timestamps, one for when the record was entered, the other for any subsequent updates. I know that the first timestamp column will be set automatically on updates, but how does the other for creation timestamp get set. My app is not generating the SQL directly so setting the value using the NOW() command is not an option, as the inserts are coming from different timezones I cannot let the clients set their own values.
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Set Default Values For Timestamp Fields
what is the syntax for specifying the default values for timestamps in MySQL in the CREATE TABLE command? I have 2 timestamps, one for when the record was entered, the other for any subsequent updates. I know that the first timestamp column will be set automatically on updates, but how does the other for creation timestamp get set. My app is not generating the SQL directly so setting the value using the NOW() command is not an option, as the inserts are coming from different timezones I cannot let the clients set their own values.
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DATE / TIMESTAMP Default Values
im is having problems with auto inserting date in my table. I dont know what is the default value i will set if column type to DATE. It was succesful though if is use the TIMESTAMP type in the column and is using CURRENT_TIMESTAMP as the dafault value. mysql automatically inserts the current date and time to the database everytime a new record is inserted. The problem with using TIMESTAMP is that i only want the date and not the additional time. Is there a default value I can use for the DATE function instead of using TIMESTAMP? I already tried NOW(), CURDATE(), CURRENT_DATE() to no avail
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How To Pass Default Values In A Stored Procedure
can anyone pls help me in passing default values in a stored procedure. That is if no value is passed to the SP then it should take the default value of that datatype.it is working in sql...but what is the alternative for that in mysql? my sql synatx will be something like this.. ALTER PROCEDURE [dbo].[usp_select_projectparticipants] ( @ProjectId INT=NULL what is the alternative in mysql?
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Showing Query Result With Default Values When No Data Available
I have a scenario that user can ask for certain data say income & expense for last 3 months on monthly basis. I have wrote following query which works well but it has an issue: Let say I have asked for data of FEB 2007, JAN 2007, DEC 2006 using the following query it shows me correct result when all three months have some data but it doesn't show me the desired result when you don't have data in one or more months. Any suggestion to get result when there is no data:
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Use Now() As Default Value For A Column
I cannot find any good material on this, and it seems like it should be so easy. I have two columns in my table, creation_date and last_modified_date. I want the creation_date field to bear the default value of Now(), so that when a row is created the timestamp is there. This value should never change, and should only be set on row creation. The last_modified_date field I want to change on the UPDATE only. It seems that this may be possible using the TIMESTAMP type and the default values there but what I read is that they will update everytime a row is altered. This would be dead-simple if I could just specify Now() as the default value.
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Default Value For A Column, When Value Is Not Specified
We have migrated our database from DB2 to MYSQL. In DB2, there is an option like 'GENERATED BY DEFAULT AS IDENTITY' which will cause DB2 to generate unique values for the identity column during insert operations if no value is specified for the identity column. However, if a value is specified for the identity column, DB2 will use it in the insert operation. In MYSQL, is there an option like this?
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Default Value On A Column
Hey guys, my hope is to quickly move from SQL2005 to mySQL and i'm hitting the GUID roadblock. If mySQL can't do a GUID by default on a column, I've got to rewrite a ton of my application around that. Tell me with 5.0 this is possible now? Or that there's some cool work-around?
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Default Value On Date Column
Using MySQL control center, I created a MySQL database table with a column of Date type. It always give the a Default value (0000-00-00) even null is allowed. I tried remove the default value and it comes back by itself. So if I don't supply a value when insert, the default is used. Query IS NOT NULL will not exclude this record. Now, In VB (with ADO/MyOLEDB), I did the exact query trying to filter out the null record. But I still get the record just like in Control Center. BUT, the value on this column is "NULL". How can I leave the Date field as null if no value is supplied?
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Column Default Value Setting
I've got a column called 'articleheader' in a table called 'article'. It currently has a default value of NULL, but i want to set it to default to "(none)" (without the double quotes). I have tried searching to find a solution but everytime I try the posted "solutions" I get an error. I think it is because I don't specifiy the type of column it is or something.
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How To Set The Default For A Datetime Column To Curdate()
I'd like to set the default value for a datetime type column in a table to today's date. It seems I should be able to do this with the CURDATE() function. I tried adding a call to the function in the default value field when creating the table's column, by when I save the table the default reverts to "0000-00-00 00:00:00" I've done this in other RDMSs. How can I do it in MySQL?
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#1101 - BLOB/TEXT Column 'data' Can't Have A Default Value
Im using phpmyadmin for working with mySQL. (its my local version, im just trying to use it). When i want to add BLOB type column in table - that mistake appears: #1101 - BLOB/TEXT column 'data' can't have a default value I turned off strict mode (from my.ini, or by config wizard), but it did not help. I've found alot about that problem in that site, but i dont uderstand anything, because im just Newbie. So what should i do to make BLOB/TEXT column have a default value? Is it possible without using hard way, just by changing something, or download any new version?
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Error #1293: There Can Be Only One TIMESTAMP Column With CURRENT_TIMESTAMP In DEFAULT Or ON UPDATE Clause
I am using MySQL 4.0/4.1 version. And I am trying to add two timestamp columns to a single table. The columns are insert_date and updat_date to capture the date/time the record was initially inserted as well as the date/time the record was last updated respectively. When I try to set one column (insert_date) with a default value of CURRENT_TIMESTAMP and the other column (updat_date) with ON UPDATE CURRENT_TIMESTAMP, I end up getting the following error: #1293 - Incorrect table definition; there can be only one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause Is there any way around this problem?
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Sort And Give Ranking
let say i've have these following table. tblA name | marks ----------------- robert | 39 johnny | 78 bruce | 23 elena | 56 halim | 23 formula, if same marks (see bruce and halim), sort them by name how to query? expected output showing as below: no | name | marks ---------------------------- 1 | johnny | 78 2 | elena | 56 3 | robert | 39 4 | bruce | 23 5 | halim | 23
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NOT IN And Left Join Should Give The Same Results In The Example, But They Don't . Why?
Just against me getting insane: I want to list all categories for which there exist no items. I thought the following would give the exact same result, but it doens't. The join gives results while the NOT IN gives 0 results. How come? select cats.id from cats left join items on cats.id = items.catid where items.id is null select cats.id from cats where cats.id not in (select catid from items) btw: what query is the most performant if any? or do you need more info for that?
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Why Does My_print_defaults Give Duplicate Results ?
There is only "/etc/my.cnf", no other configuration file exists. But "my_print_defaults ..." gives duplicate results. # my_print_defaults mysql --prompt=<u@h d>\_ --safe-updates=true --prompt=<u@h d>\_ --safe-updates=true # my_print_defaults mysqld --datadir=/var/lib/mysql --socket=/var/lib/mysql/mysql.sock --user=mysql --log=/var/log/mysql/general.log --log-bin=/var/log/mysql/update-bin-log --log-error=/var/log/mysql/error.log --log-slow-queries=/var/log/mysql/slow.log --server-id=100 --datadir=/var/lib/mysql --socket=/var/lib/mysql/mysql.sock --user=mysql --log=/var/log/mysql/general.log --log-bin=/var/log/mysql/update-bin-log --log-error=/var/log/mysql/error.log --log-slow-queries=/var/log/mysql/slow.log --server-id=100
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Give On Condition Higher Priority
I have a system where my pages are built of a bunch of boxes. Each box can have multiple contents, which is displayed att different times. So a box can have a box contents with "begins" = NULL, and "ends" = NULL. At the same time, it can have a box contents with "begins" = 2007-10-01, and "ends" = 2007-11-10. When I select it all, I group on box id, because I just want one box contents. But the problem is that I need the contents which doesn't have begins/ends as NULL to get a higher priority than the once that do. So a user can have one box contents to be displayed all the time, except from 2007-10-20 to 2007-10-21. My current query (it's stripped, I don't use SELECT * ) looks like: SQL SELECT * FROM pages AS p LEFT JOIN pages_boxes AS pb ON pb.page_id = p.page_id LEFT JOIN boxes AS b ON pb.box_id = b.box_id LEFT JOIN boxcontents AS bc ON b.box_id = bc.box_id WHERE ( bc.box_ends > CURRENT_TIMESTAMP OR bc.box_ends IS NULL ) AND ( bc.box_begins < CURRENT_TIMESTAMP OR bc.box_begins IS NULL ) GROUP BY b.box_id But it always just selects the box contents which was inserted first.
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Updating Give Unexpected Math Results
If I do the following I get a ridiculously huge value out of range on a MEDIUM INT (7) field that is SIGNED: UPDATE some_table, other_table SET some_table.amount = some_table.amount - other_table.quantity_lost WHERE some_table.id = other_table.id Why is this happening? I am expecting maybe a -3 if the 'quantity_lost' is 5 than the 'amount' is 2 but instead I get a number like 1654681313879138538515468.
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Column Values.
is there a way i can create a column that returns result the biggest value of other columns? ie. table foo has following fields, all INT, except name VARCHAR name list A B C so if name=joe has A=5 B=7 C=9 , i want list=9 is it possible in mysql to create such variable columns? or do i need to make a perl script to update the table with the info based on what I have on A, B, and C.
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Add Values Into A Column
I have a column called year with the format YYYY-MM-DD, but I would like to have year, mount and day in three different columns in my database. How can I do this?
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How To Get Different Values From The Column
I am reposting my question here as there's no reply from the other post (different subject). In the column, there are mixture of multiple same and different values. How do I write to obtain all different values with the limited row? For example, select pet from pet_customers where ?????? order by Date Desc limit 25;
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Adding Column Values
I have a table with a column that holds integers. In the column, there are 30 rows. My question is this: How do I add up all the values? (I am working also with PHP5) So say the name of the coumn is: CARS. There are 30 rows.Some rows have 0s and others have 1s. So if there are say 15 rows with 0 and 15 with 1s. How do I add up all the values and get the final result: 15 for the column?
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Update Values In Column
i have a table with about 500 rows, i need to UPDATE the city column in each row. I want to remove a comma (",") a space (" ") and the 2 letter state abv ("FL") from all values in the column (named 'city'). example: "Miami, FL" should become "Miami"
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How To Update Values In A Column
I have a price list that needs increasing by 10%. Is there any way to do an update commmand and multiply all values in the column by 1.1 to achieve this? I've tried various commands but to no avail.
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Multiple Values For A Column
I have a table with columns as ID, Name , Aliases and work_duty. Now the aliases could be 1,2,... or null, right now what i have done is joined each aliases by '|' and stored as single column in the database. I want to ask like if there a way such that I store all the aliases separetly and when I query through web page using name or aliases whole row is displayed.
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How To Get A Minimum And All The Values Of A Same Column
there is a table with has due_Date as one of its fileds. i want to get the minimum value of that column along with other values. How i do this.. at the moment i'm trying to this (this is not working when the due_Date is duplicating..caz that group by thing) i like to have it using pure SQL rather using any mySQL specific commands. SELECT min(a.due_date), b.due_date FROM INVOICE_UTILITY_PAY_PLAN_PUB a, INVOICE_UTILITY_PAY_PLAN_PUB b WHERE a.party_type_db = 'CUSTOMER' GROUP BY b.due_date; i want some thing like this for my output MIN(A.DUE_DATE) DUE_DATE --------------- ----------- 1/1/2000 10/6/2004 1/1/2000 10/6/2004 1/1/2000 11/2/2004
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Split Column Values
I have a comma separated value in column like A,B,C,D. I want to use it in like clause, but before i use, it should be converted to 'A','B','C','D'. How can i achieve this? AND Just curious to know. In MSSQL it is possible to have a select on comma separated values. Can this be also done in MySQL ?
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Multiple Values In Same Column
My table has a column (additional_info) with values like this 'IP=1.1.1.1&ID=1234567' I have a list of about 1000 ID's which I need to get information on. Right now I'm using a statement like this to retrieve the info: select * from table_A where additional_info like '%ID=1234567' or additional_info like '%ID=2512541' or additional_info like '%ID=2125413'..... This is taking a long time to complete. Is there an easier/more efficient way to do this?
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Sorting Column With Values A-Z Before AA-ZZ
I need to sort based on a column that has values as follows: row ---- A B C D AA BB CC DD etc..... i need the data to be sorted and displayed as A-Z then AA-BB. I saw this thread: http://forums.mysql.com/read.php?100,69968,70410#msg-70410 is there something similar, that would allow me to sort this way.
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Cant Set Desired Values In Column.. (ex. 1.jpg)
On my personal test server I have a MySQL Datatabase, and one of the fields is a type VarChar(45). For this column I have the default value set as 0.jpg. Now, on the server provided to me on the internet I cannot select VarChar(45), and all of the ones I have tried only allow me to enter in 0 as thhe default value. This is a problem as I need to store the filename in this column, ex 1.jpg, 2.jpg,
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Archiving Old Column Values Using Timestamps
I was thinking of having two timestamps one showing the start time and one the end time. Of course this would cause a problem since the current record is technically open ended. I was thinking I could use '0000-00-00 00:00:00' to signify the most current value. Code: ------------------------------------------------------------------------ | recordID | recordValue | startTime | endTime | ------------------------------------------------------------------------ | 1 | 23 | 2007-09-27 00:00:00 | 2007-10-13 23:59:59 | ------------------------------------------------------------------------ | 1 | 23 | 2007-10-14 00:00:00 | 2008-08-11 12:13:46 | ------------------------------------------------------------------------ | 1 | 23 | 2008-08-11 12:13:47 | 0000-00-00 00:00:00 | ------------------------------------------------------------------------ Now I was thinking of how to query this on the MySQL side rather then relying on PHP code to execute different queries depending on whether the query is occurring currently or back in time. I have a query that seems to be working but the logic in it doesn't really seem to work accurately and I am sure I am just getting good results by fluke. Code: SELECT recordValue FROM `tablename` WHERE '2009-01-12 14:23:32' BETWEEN startTime AND endTime OR endTime = '0000-00-00 00:00:00' LIMIT 1
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INSERT Values In Three Tables Using ID Column
how to insert values in different tables? Table t1 got a column named "id" and this value should appear in t2.t1_id In other words: How to fill all columns in all tables with one INSERT / UPDATE ? t1 id bigint autoincrement name varchar() bla bla t1 id ....
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How To List Duplicate Values In A Column?
I have a large table which has duplicate values in one of the columns. I can easily see how many duplicates there are by using COUNT and DISTINCT, but I can't see what the duplicates actually are. I guess there's a simple way to list duplicates, but I can't get my head round it.
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