Default Table Type On MySQL 5
I seem to recall reading somewhere that InnoDB was the default table type for MySQL 5. Yet when I did a 'show table types' it indicated that MyISAM was the default type since version 3.
View Complete Forum Thread with Replies
Related Forum Messages:
Default For The Type SET
I've created a database with a field of the type SET. Something like this: SET('choice1','choice2','choice3'). The default choice is the empty ('') string. Do I have to also define the empty string in the set like this SET('choice1','choice2','choice3','') or is this not necessary?
View Replies !
Date Type Default Value
I would to give the CURDATE() value to a date field as null value. I wrote: sql_fecha` date NOT NULL default 'CURDATE()', and I get : Error #1067 - Invalid default value for sql_fecha I take off the () and got the same result. I also cast the expression as : CAST( CURDATE() AS DATE) and the same error.
View Replies !
CREATE TABLE With DEFAULT CHARSET In MySQL < 4.1
Ok, I've read the whole chapter 10 of the reference manual and now I know, that only MySQL Version up from 4.1 support the CREATE TABLE tbl (cols) DEFAULT CHARACTER SET foo COLLATE bar statement. But is it possible to create tables with special charactersets (at least UTF8) with a MySQL version prior to 4.1?
View Replies !
Settig A Table To Its Default Value
I just need to know what syntax do I use to set a table to its default values. Like here is the problem that I have. I run a traffic exchange site and I have 700 customers. And I need to reset everybody's account balances back to zero(which is the default value) How would I change the balances back to zero using a database query? The reason that I need to know this is because I don't want to have to go through everybodies account one by one and change their balance.
View Replies !
Restore Default User Table
For some reason the mysql database does not contain any tables; How do i restore the default user table? I tryed to reinstall mysql: yum remove mysql httpd php php-mysql mysql mysql-server yum install mysql httpd php php-mysql mysql mysql-server service mysqld start [root@localhost] ~ : mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 30 to server version: 4.1.20 Type 'help;' or 'h' for help. Type 'c' to clear the buffer. mysql> show databases; +----------+ | Database | +----------+ | mysql | | test | +----------+ 2 rows in set (0.00 sec) mysql> use mysql; Database changed mysql> show tables; ERROR 1044 (42000): Access denied for user 'root'@'localhost' to database 'mysql' mysql> But i still dont have permission to create a new database, cause mysql database have no tables.
View Replies !
Default Database/table Charset
i'm trying to get UTF-8 working in my PHP app. It's all good now except for one thing. During the installation process, I use the AdoDB XML Schema class to automatically create the necessary tables from XML files. This is great, but has the drawback that I don't get to specify the Character Set of the new tables, as AdoDb doesn't support that yet. What I'm looking for is the best way to get the desired result: all tables using the UTF-8 charset. Form what I can understand of the manual, I can set the default charset of the database, then create the tables and they will inherit the charset. However, as my app may not be the only one using this particular database, it's important that I restore the default charset after I've finished the installation. Does this sound like the right way to go? Basically, I run: SHOW VARIABLES LIKE 'character_set_database' ...to get the previous default, then set the default to utf8, then install the tables and finally return the charset to whatever it was previously.
View Replies !
How To Select Default Value If The Given Entry Doesn't Exist In Table?
user | data ---------------------- root | data1 mike | data2 default | data3 ---------------------- I need to select some data from the data column for a user, which is very simple: > select data from table where user='mike' Problem: when a user doesn't not exist in the table, the select query has to return data for "default" user (also in the table) and I don't know how to do it. So, it should be something like this: > select data from table where <if john exists user='john'> <else user='default'> in the table above, user 'john' doesn't exist and this query is supposed to return 'data3' value. I've read that "if/then", "if exists" statements are used in procedures only,
View Replies !
Create Table :: Right Syntax To Use Near 'DEFAULT CHARSET=latin1'
Why would the following SQL cause an error when run? CREATE TABLE `webportal_adminips` ( `id` int( 11 ) NOT NULL AUTO_INCREMENT , `strip` varchar( 20 ) default NULL , `blnactive` enum( 'yes', 'no' ) default NULL , PRIMARY KEY ( `id` ) ) ENGINE = InnoDB DEFAULT CHARSET = latin1; Error I am getting is: #1064 - You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near 'DEFAULT CHARSET=latin1' at line 6
View Replies !
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)
View Replies !
Create A New Table With Table Type??
I was creating a new table via a query and when i went back and looked at the size, it was over 3MB! This with only five records in it. Here's what I found: table size(bytes) type A 26 MyISAM B 66 MyISAM C 0 MyISAM D 3276 InnoDB E 0 MyISAM so then i tried to create the table defining the type but it keeps erroring out on me. My question is: How/Can you create a table with the TYPE defined via a query? create table testtbl (yr varchar(4)) type=myisam <- works create table testtbl as (select * from table1) type=myisam <- errors
View Replies !
Table Type And Precautions
I am beginning to create a medical database and a user frontend for physicians to be able to enter patient data.. practically an Electronic Medical Record. What would be the best setup regarding security for mysql. Is mysql even a good choice for this type of application? InnoDB tables vs. MyISAM vs. something else? Obviously redundancy is a huge deal that I will take much precaution with. Any scripts or techniques I could use to ensure easy mysql backups? Anything else I may be neglecting?
View Replies !
Matrix Type Table
Tables in MySQL have columns that are individualy named. Suppose your data consists of a large matrix. You don't want to name each column, suppose you have a million columns. So the question is: How do you use CREATE to set up a table that contains a large matrix?
View Replies !
Column Type In Table
I want to add a column in my database table to store a collection of integers like {1,3,4,5}. does anyone know what the datatype for this column should be?
View Replies !
Table Type InnoDB
I am struggling a bit to get going with mysql and my tutorial works through InnoDB tables without a clear explanation of the setup. To date I have modified the /etc/my.cnf file. mysqld starts without complaining. I have modified my.cnf to include: innodb_data_file_path = /data/mysqldata/innodb_data/innodata:10M:autoextend innodb_data_home_dir= It turns out that logged in as a mysql user if I "use innodta' it mounts as a the database. So am I correct in assuming that identifying the tablespace name in innodb_data_file_path is the equivalent of 'create database <databaseName> with a MyISAM table? Also once having 'use innodata' I can issue a create tables command and then see <tablename>.frm .MYD, and MYI listed in the innodb_data directory. However when <tblename> was created I could not use the 'engine = innodb; ' as the last line of the create table sql statement without getting an error. This suggests that the table that I made without 'engine=innodb' is just the usual MyISAM based table. Right? Wrong? Huh? I think the documentation is a little lacking in this area as are two other MySQL books that I purchased
View Replies !
Alter Table Type
I am trying to alter my table type so I can use a foreign key. I am using this command and it says it is updated, but the table type doesn't atually change. Do I need to recreate my tables, starting out with this type of table? ALTER TABLE employees TYPE = innodb; Even when I creae a table, it doesn't give me the option of what kind of table type. I am using phpmyadmin to manage my DB. EDIT: I just did some research and found that my service provider doesn't offer innodb as an option. Is it still possible to set up my tables with a foreign key to link my various tables together?
View Replies !
Creating Table Type Innodb
I am trying to create tables with type innodb. I created a database and all the tables of type ISAM. Now I am at the point of making relations and establish refrential integrity. For that ofcourse I have to change the tables in the Innodb type. I did that with the commad "alter table tablename type = innodb". Command runs fine but the table type doesnt change. I tried to create a new table of type innodb but its not working either. I dont know what the problem is. Do we have any command to enable the innodb property or what?
View Replies !
What Type Is Each Table? (MyISAM Or InnoDB)
I'm have about 200 MySQL databases on my server. Each database has 114 tables. All of the tables SHOULD be InnoDB, but I've found a few that are MyISAM. I'm trying to write a perl script to give me a list of all the MyISAM tables. Is there any sort of select statement that will give me the table type? (MyISAM or InnoDB) The only way I can figure this out is doing a 'SHOW CREATE TABLE' on each table and then looking at the table type from there. It would be 1000 times easier if I knew a select statement that would give me just the table type.
View Replies !
ORDER BY W/ HEAP Table Type
I am creating an online application that lists the last 50 users that loaded a page. I used a InnoDB table type for storing most information (which rarely changes), but was thinking of moving the UPDATE and SELECT function that tracks who last clicked something to a HEAP table for speed. I think I would be OK with the UPDATE to a HEAP table, but I have read that ORDER BY cannot be used on HEAP indexes. But, do I have to use an Index? Can I make a SELECT like this on a HEAP table that has only two columns (login and datenow)? $queryonlineusers="SELECT login FROM mmih_users ORDER BY datenow DESC LIMIT 50";
View Replies !
Excluding A Certain Column Type In A Table...
I have a quick and dirty question here, here's my current query for MySQL through PHP: SELECT * FROM `cms_pages` WHERE ".$query_body . " ORDER BY `page_title`; Where i want to change this because I am storing also some administrative mysqllates within there that show up in the results... Which yes it's all protected by user rights and all, but I want to "exclude" a certain group as such on result time: Title Account > Contact Information Account > Register Administration » Manage » Rewrites » Create Rewrite Administration » Manage » Rewrites » Edit Rewrite Terms and Conditions As you see above the Administration type pages is the ones I want to remove from the search results, where I'm trying to find the "MySQL query" that will basically say, "Exclude anything that says Administration." Basically I have a column 'theme_name` that outlines the Administration part under as 'admin' which I think if there is some sort of exclusion syntax I can use within my query in MySQL, what would it be to say something like this: SELECT * FROM `cms_pages` WHERE ".$query_body . " EXCLUDE * FROM `theme_name` LIKE %admin%, ORDER BY `page_title`; How can this be done properly inside MySQL? So me being new to MySQL and find this the appropriate forums for MySQL queries, I do appreciate any and all help. Because I can't for the life of me figure out how to query the DB Table and add in an exclusion type part to my MySQL query...
View Replies !
Best Table Layout For This Type Of Data?
I have a database of products, say computer hardware. The products table has all products because most products have the same stuff, price, name, model, etc...but some products have "extra" stuff. Say, if it were computer products a hard drive might have a speed or size associated with it but a monitor would not. Would it be best to add say like 5 columns(spec1,spec2,spec3) and they just contain the data if it exists or is there another way like create a hardrive table with (speed, size) columns and link the product table to that table?
View Replies !
Alter Table Type MyISAM To INNODB
I've got a table with ~250k rows. When I try to alter it's type from MyISAM to INNODB, it just sit's on 'copying to tmp table' for an obscene length of time, until I eventually kill it. I've done it to a few 150k row tables with no problem. Takes about 5-10 seconds. I then found another table with a similar row count, was able to alter it without a problem. But it was smaller in size. So found one bigger, with double the rows, and 10mb larger.... And still, it worked.
View Replies !
Convert Table Type From InnoDB To MyISAM
I've writing my site's search engine - and it currently used InnoDB for two of the tables that I need to search - primarily the assets table. This table has a couple of FKs. Now I'm thinking that using FULL TEXT indexes might be the better way to search these tables - but I can't switch them to MyISAM without getting an error : cannot delete or update a parent row - foreign key constraint fails. The interesting thing is that I had another table with a foreign key that I was able to switch to MyISAM. So, is the FULL TEXT search worth it? Is this really the best way for writing my advanced search engine. I think that it probably is. However, I can't convert my table to MyISAM. So, what's the work around for this problem?
View Replies !
Alter Table Type: MyISAM To INNO DB
I've got a table with ~250k rows. When I try to alter it's type from MyISAM to INNODB, it just sit's on 'copying to tmp table' for an obscene length of time, until I eventually kill it. I've done it to a few 150k row tables with no problem. Takes about 5-10 seconds. I then found another table with a similar row count, was able to alter it without a problem. But it was smaller in size. So found one bigger, with double the rows, and 10mb larger.... And still, it worked. Does anyone have any ideas as to why this one table might be inclined to be so beligerant?
View Replies !
Modify Table Engine Type Failing.
I keep getting the following error when trying to change the tables engine type. Why is this failing and how can I fix it? mysql> ALTER TABLE trade_messages ENGINE = INNODB; Query OK, 827793 rows affected, 1 warning (1 min 3.90 sec) Records: 827793 Duplicates: 0 Warnings: 0 mysql> SHOW WARNINGS; +---------+------+--------------------------------------------------------+ | Level | Code | Message | +---------+------+--------------------------------------------------------+ | Warning | 1266 | Using storage engine MyISAM for table 'trade_messages' | +---------+------+--------------------------------------------------------+ 1 row in set (0.00 sec)
View Replies !
How To Model Variable Number/type Table Columns?
I currently model reports using a single report table with it's fixed set of columns describing the parameters of a report. Now we'd like to make the system more flexible by introducing a number of report mysqllates. Each mysqllate defines a different set of parameters a report can have, and the user gets to decide what report format they want by assigning it a mysqllate. the problem is that if I include all those possible parameters as columns in the report table it will be inefficient. No report uses all of them, so every row will only use a subset of columns to store values. I thought the solution would be to create a new table called report_field, and then have a many:many relationship between it and the report table. When a user selects a mysqllate to build a report, I'd create a row in the report table, N report field rows based on what the mysqllate dictates, and then link them. But the problem is that the parameters can be of varying data types, and I can only specify the data types of the columns in the report_field table when I create the table. I could create report_field_int, report_field_date tables etc. But that doesn't seem the right way to go. Querying becomes very difficult as you'd have to determine table names from the mysqllate field data types. I could abandon the report_field table idea and just create report_mysqllate_A, report_mysqllate_B tables etc that model exactly the number and type of fields for the particular mysqllates. But I'd like to maintain a master report table if possible. Also, down the road, it would nice to allow the user the option to design their own mysqllate. In which case I can't know ahead of time what fields I will need to assign to a report. I'm certain this must be a very common scenario, and I'm hoping that there is a much more elegant way of solving this I haven't seen yet. I tried searching online, but I found nothing. It's probably a terminology problem. I'm a db beginner so I don't know the phrases I should be looking up.
View Replies !
Create Column(table) Type With Exact Number Of Characters
i need to have column (for passwords) which will have exact number of characters, for example 10 characters, and i didn't know how to do it using sql (Mysql). I know that it is possible with Php, but i want to do this in the sql. Is it possible? ( and i don't want to use char(number) because i don't want to accept shorter passwords (or other data).
View Replies !
I Need To Convert Date Type To String Type
I need to retrieve a Date type data from the database and present the data in my GUI as a String type. I've tried like this : ResultSet rs; Date data; data = (String)rs.getDate("ColumnName"); gui_label.setText(data); but they say inconvertible types... Can someone teach me the way so that I can retrieve Date type data from the database and present it in the GUI as a String type.
View Replies !
2 Table, 5 Different Type Per Table
What I have: 2 table: First one is USERS, I have 3 type of USERS, A,B,C Second one is CALLS that have a caller_id, a called_id, a status (0,1,2,3,4), and a date. The field caller_id and the called_id are taken from table USER (field user_id) I need to show, aggregate by week how many user type A have call USER A,B,C divided by status of call, how many user type B have call USERS A, B, C divided by status of call, how many user type C have call USERS A, B, C divided by status of call. Without doing a large number of different query and without using excel to show the results...Is there a way?
View Replies !
MySQL Default Value
When a customer places an order, the database sets the default at "3" which means "not complete" when it is complete and billed, It is assigned a "1" I want to have it be assigned a new number on all future orders, but no not want it to go back and reset every single past order. If I change the default value number in the database, will it only apply to new orders, or will it change every single record to the new default regardless of their current status?
View Replies !
Does PK Field Type Have To Be Same As FK Filed Type?
I have a table with a primary key and, in another table, a foreign key to that 1st table needs to be set. should both fields have the same type i.e. where the PK is a 'int(11)' should the FK field be 'int' as well. And if so does it neeed to be limited to 11 as well?
View Replies !
What Type Do U Use To Store Currency Type?
What type do you use for storing price number? Decimal? If you use decimal, how many decimal point do u use? I use Mysql migration toolkit to convert my access db to mysql, and my Price column has been changed to decimal(19, 4). Anyone use decimal(19, 2)?
View Replies !
Default Password Set In Mysql
Can any one tell me if there is a default password set in mysql when installing it. I am sure that i did not give any password while installation process. To confirm it i installed it many times and different versions as well. I am having following error message: ERROR 1045: Access denied for user: 'ODBC@localhost' (Using password: NO)
View Replies !
Default Mysql User
I need to know the user name of my "mysql" database so i can connect it to other applications. So far i haven't created any new profiles, so i'm only prompted to enter the user password when i start up mysql. Would the default users name in my case be "root" or is that only on unix machines? (i'm running mysql on win2000)
View Replies !
Default Value Problem In Mysql
- Database table with a decimal field set to Null and with a default value of 0.00 - PHP page with a form containing a price field which, on submission adds a new record to the table. If the user leaves the price field empty on the form the intention was for the default value to be applied to the field. However, an error is returned to the effect that a valid decimal value was not input. The form could have a default value of 0.00 displayed to the user and while this overcomes the problem it would be preferable to allow the field to be left blank. Is it the case that the script is picking up the field as being an empty string and if so how do I get around this?
View Replies !
|
TRACKER
