2014/11/04 11:04 -0800, Jan Steinman
I was not suggesting it for dates. The OP appeared to have a well-defined set
of strings in a VARCHAR field THAT is what I suggested ENUMs for!
What is the update frequency of those VARCHARs? If you're adding them often
or if you need
2014-11-06 21:49 GMT+01:00, Roberta Jaskólski h...@tbbs.net:
Ugh--I missed the discussion shift from the DATEs to the VARCHAR labels ...
and now I wholeheartedly agree with you.
As for the DATEs, I yet suspect that for performance maybe TIMESTAMP is
slightly better than DATE.
Well what I'm
- Original Message -
From: Zbigniew zbigniew2...@gmail.com
Subject: Using INTEGER instead of VARCHAR/DATE - is this a way to faster
access?
What about using ENUMs? They have nearly the performance of INTEGERs, but
you don't have to maintain a string mapping in your programming
integrity is external to
MySQL, and has to be managed.
... and maybe is useful if the set of dates is well determined...
I was not suggesting it for dates. The OP appeared to have a well-defined set
of strings in a VARCHAR field — THAT is what I suggested ENUMs for!
There is a design cost
2014/11/02 13:19 +0100, Zbigniew
So you guys (Jan and hsv) suggest, that switching from DATE to more
numeric data type may not be necessary, but using ENUM instead of
VARCHAR can be real performance gain, right?
But are you able to estimate, what boost can i notice? 5% - or 50%,
or maybe even
may not be necessary, but using ENUM instead of
VARCHAR can be real performance gain, right?
But are you able to estimate, what boost can i notice? 5% - or 50%,
or maybe even 500%?
--
Zbig
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bit faster than TIMESTAMP.
using ENUM instead of VARCHAR can be real performance gain, right?
Not just in performance, but it appears to simply be The Right Thing To Do(TM)
in your case. (Codd Rule #10: referential integrity.)
Consider an insert into a day-of-week column (for instance
2014/10/29 20:56 +0100, Zbigniew
Now to the point: considering, that the second column shall contain
about 100-200 different labels - so in average many of such labels
can be repeated one million times (or even more) - will it speed-up
the selection done with something like ...WHERE label='xyz'
From: Zbigniew zbigniew2...@gmail.com
Now to the point: considering, that the second column shall contain
about 100-200 different labels - so in average many of such labels
can be repeated one million times (or even more)
What about using ENUMs?
They have essentially the performance of
From: Zbigniew zbigniew2...@gmail.com
Now to the point: considering, that the second column shall contain
about 100-200 different labels - so in average many of such labels
can be repeated one million times (or even more)
What about using ENUMs? They have nearly the performance of
I'm going to establish a large database (ISAM) of simple structure,
say the table with only 3 columns:
- VARCHAR(80)
- VARCHAR(40)
- DATE
The number of rows can be quite large, about hundred million or so.
The first column, containing actual information, will contain unique
values, unlike
In the last episode (Nov 05), Li Li said:
I want to create a table with a long varchar column, maybe it's the url.
according to dns spec, the url's max length is fixed. but I have
to deal with url having long params such as
a.html?q=fl
.
-Original Message-
From: Dan Nelson [mailto:dnel...@allantgroup.com]
Sent: Tuesday, November 05, 2013 7:56 AM
To: Li Li
Cc: mysql@lists.mysql.com
Subject: Re: how to create unique key for long varchar?
In the last episode (Nov 05), Li Li said:
I want to create a table with a long
:
In the last episode (Nov 05), Li Li said:
I want to create a table with a long varchar column, maybe it's the url.
according to dns spec, the url's max length is fixed. but I have
to deal with url having long params such as
a.html?q=fl=
:
In the last episode (Nov 05), Li Li said:
I want to create a table with a long varchar column, maybe it's the
url.
according to dns spec, the url's max length is fixed. but I have
to deal with url having long params such as
a.html?q=fl
is that if I define md5 as unique key and there exists
2 different urls with the same md5. I can't insert the second url
anymore
On Tue, Nov 5, 2013 at 11:55 PM, Dan Nelson dnel...@allantgroup.com wrote:
In the last episode (Nov 05), Li Li said:
I want to create a table with a long varchar column
hi all
I want to create a table with a long varchar column, maybe it's the url.
according to dns spec, the url's max length is fixed. but I have
to deal with url having long params such as
a.html?q=fl=
I want the url is unique
- Original Message -
From: Andrés Tello mr.crip...@gmail.com
showed the usage of the index, then, some time later, it show, for
the same query, the usage of no index...
Look at the rows field. It's obvious that this table is live and rather on
the active side; and the data has
mysql explain select * from cuenta where rutaCuenta like 'CTV%';
++-++---+---++-+--++-+
| id | select_type | table | type | possible_keys | key| key_len
| ref | rows | Extra |
primary key on ( `id` varchar(255)
NOT NULL, ) column. I cannot alter the schema.
So if i need to partition on created column then i need to put primary key
as ( id,created_time ) that is not accepted because this causes duplicate
records of id under different created times.
i.e i ask in my first
-keys.html
.
Is it possible i can create partitioning on a substring of varchar(255) (
id ) column. Below are the some contents of my id column :-
0038000-120614070130414-sudoie-sudoi-C@86 |
| 0038000-120614070130414-sudoie-sudoi-C@87 |
| 0038000-120614070130414-sudoie-sudoi-C@88 |
| 0038000
partitioning function
as it is clearly mentioned in
http://dev.mysql.com/doc/refman/5.1/en/partitioning-limitations-partitioning-keys-unique-keys.html
.
Is it possible i can create partitioning on a substring of varchar(255) (
id ) column. Below are the some contents of my id column
that there will be
any benefit.
See tips in
http://mysql.rjweb.org/doc.php/ricksrots
-Original Message-
From: Adarsh Sharma [mailto:eddy.ada...@gmail.com]
Sent: Friday, September 21, 2012 5:09 AM
To: mysql@lists.mysql.com
Subject: Re: Partitioning on a Substring of Varchar Column
-Original Message-
From: petya [mailto:pe...@petya.org.hu]
Sent: Wednesday, April 06, 2011 3:55 PM
To: John G. Heim
Cc: mysql@lists.mysql.com
Subject: Re: efficient use of varchar?
Hi,
There is difference between varchar(63) and varchar(38). Instead of
selecting MAX(LENGTH()) you can do
use of varchar?
-Original Message-
From: petya [mailto:pe...@petya.org.hu]
Sent: Wednesday, April 06, 2011 3:55 PM
To: John G. Heim
Cc: mysql@lists.mysql.com
Subject: Re: efficient use of varchar?
Hi,
There is difference between varchar(63) and varchar(38). Instead of
selecting MAX
Does it make any difference if I allocate a particular number of bytes for a
varchar? I mean, just as an example, maybe its more efficient to use a power
of 2 as the field length. Or maybe power of 2 minus 1. I'm guessing not and
that anything less than 255 is the same.
I'm converting some
Hi,
There is difference between varchar(63) and varchar(38). Instead of
selecting MAX(LENGTH()) you can do PROCEDURE ANALYZE() on the table,
which will tell you about the optimal record type for the data you
currently have in the table.
When you are using inreasonably large varchar columns
10, 2009 at 6:37 PM, Waynn Lue waynn...@gmail.com wrote:
Hey all,
I was building a table for storing email addresses today and ran into an
issue that I couldn't find an answer for using Google. If I declare the
column as a VARCHAR (this is an InnoDB table), does it matter what size I
declare
couldn't find an answer for using Google. If I declare the
column as a VARCHAR (this is an InnoDB table), does it matter what size I
declare it as if it's between 1 and 255? I know there's an extra byte of
storage once it goes above 255 because of the length, but is there a
storage
difference
the
column as a VARCHAR (this is an InnoDB table), does it matter what size
I
declare it as if it's between 1 and 255? I know there's an extra byte of
storage once it goes above 255 because of the length, but is there a
storage
difference between VARCHAR(100) and VARCHAR(255)? Obviously
Your mail suggests that you *are* seeing a difference, though. What
are you seeing?
What I was saying, is that VARCHAR takes up space l (= length)
of the data plus 1 or 2 bytes to store the length, while CHAR takes
up the full space of the -defined- column size.
This is rather wasteful when
, is that VARCHAR takes up space l (= length)
of the data plus 1 or 2 bytes to store the length, while CHAR takes
up the full space of the -defined- column size.
This is rather wasteful when storing CHAR data that doesn't take up
the full available space (as this is padded with spaces up
Hey all,
I was building a table for storing email addresses today and ran into an
issue that I couldn't find an answer for using Google. If I declare the
column as a VARCHAR (this is an InnoDB table), does it matter what size I
declare it as if it's between 1 and 255? I know there's an extra
email addresses today and ran into an
issue that I couldn't find an answer for using Google. If I declare the
column as a VARCHAR (this is an InnoDB table), does it matter what size I
declare it as if it's between 1 and 255? I know there's an extra byte of
storage once it goes above 255
Hi,
On Fri, Apr 4, 2008 at 1:46 PM, Ed W [EMAIL PROTECTED] wrote:
It appears that since updating from mysql 5.0.44 to 5.0.54 I have also lost
my DEFAULT option on all my varchar columns.
For colums which are also NOT NULL this is causing a bunch of problems in
my existing app (trying
It appears that since updating from mysql 5.0.44 to 5.0.54 I have also
lost my DEFAULT option on all my varchar columns.
For colums which are also NOT NULL this is causing a bunch of problems
in my existing app (trying to insert NULLS)
Anyone can explain what happened and why this has
-Original Message-
From: Mont McAdam [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 22, 2008 7:18 PM
To: mysql@lists.mysql.com
Subject: Re: Did NOT condition on VARCHAR change with 5.0.45?
`method` is the name of the column in the table.
In my opinion it should return every
On Jan 22, 2008 7:18 PM, Mont McAdam [EMAIL PROTECTED] wrote:
In my opinion it should return every record from the table where `method` is
equal to NULL, ZERO or EMPTY STRING, as this table doesn't allow null, and
the field type is varchar, this would be EMPTY STRING's only.
Although
`method` is the name of the column in the table.
In my opinion it should return every record from the table where `method` is
equal to NULL, ZERO or EMPTY STRING, as this table doesn't allow null, and
the field type is varchar, this would be EMPTY STRING's only.
This has always worked
Hi,
I am having a problem with MySQL 5.0.45 returning what I consider to be
unexpected results.
Basically I am attempting the following query, and ALL records are being
returned.
SELECT * FROM `jos_products_orders` WHERE NOT `method`
For the uninformed, what should this do according to you?
What is method mean in your sql statement?
On Jan 15, 2008 5:33 PM, Martijn Tonies [EMAIL PROTECTED] wrote:
Hi,
I am having a problem with MySQL 5.0.45 returning what I consider to be
unexpected results.
Basically I am attempting the following query, and ALL records are being
returned.
,
`ordered` datetime NOT NULL,
`paid` int(11) NOT NULL default '0',
`released_by` int(11) NOT NULL,
`paid_at` datetime NOT NULL,
`method` varchar(10) NOT NULL,
`order` text NOT NULL,
`amount` float NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=215
.
If you are post processing the
data on the front end, it may be quicker and certainly easier to do it
there.
Agree - see below.
On Jul 26, 2007, at 7:40 AM, Lars Schwarz wrote:
hi all, is there any shorthand to extract the string part of a varchar
field
only?
like when having german street
.
If you are post processing the
data on the front end, it may be quicker and certainly easier to do it
there.
Agree - see below.
On Jul 26, 2007, at 7:40 AM, Lars Schwarz wrote:
hi all, is there any shorthand to extract the string part of a varchar
field
Hi Lars,
Lars Schwarz wrote:
hi all, is there any shorthand to extract the string part of a varchar
field
only?
like when having german street addresses (e.g. foostreet 23) in a varchar
field
and i want to select the non-numeric part of it (foostreet) only?
I can't think of a way to do
hi all, is there any shorthand to extract the string part of a varchar field
only?
like when having german street addresses (e.g. foostreet 23) in a varchar
field
and i want to select the non-numeric part of it (foostreet) only?
thanks, best: lars
end, it may be quicker and certainly easier to
do it there.
On Jul 26, 2007, at 7:40 AM, Lars Schwarz wrote:
hi all, is there any shorthand to extract the string part of a
varchar field
only?
like when having german street addresses (e.g. foostreet 23) in a
varchar
field
and i want
hi all, i'm looking for a function to extract the string part of a varchar
field only. like when you stored an
street address in one field like foobar street 23 and i want everything
except the numeric value of it.
is it possible without a regexp? if not, anyone has a regexp for that
purpose
hi all, i'm looking for a function to extract the string part of a varchar
field only. like when you stored an street address in one field like foobar
street 23
and i want everything except the numeric value of it.
is it possible without a regexp? if not, anyone has a regexp for that
purpose
If I have a table with rows like this, all varchar:
DOG_LUCY
DOG_CHARLIE
DOG_LASSIE
DOG_XRAY
CAT_MR_BIGGLESWORTH
CAT_SCRATCHER
CAT_WHISTLER
what is the form of a query that will return the rows where the first part
of the string matches?
For example, what if I'd like to return the rows
SELECT column FROM table WHERE column LIKE CAT\_%;
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On 7/4/07, gary [EMAIL PROTECTED] wrote:
SELECT column FROM table WHERE column LIKE CAT\_%;
Would it be reasonable to assume that if column is indexed, the query
would execute quickly, i.e. I would assume that the indexing would
facilitate this kind of query?
In the last episode (Jul 04), David T. Ashley said:
On 7/4/07, gary [EMAIL PROTECTED] wrote:
SELECT column FROM table WHERE column LIKE CAT\_%;
Would it be reasonable to assume that if column is indexed, the
query would execute quickly, i.e. I would assume that the indexing
would
randomly with a string of 6 digits but
setting each varchar within a row the same, and executing queries.
s3 is indexed (below). LIKE CAT% was obscenely fast on an indexed
column. LIKE %CAT% was obscenely slow.
Thanks for the help.
-
mysql explain stest
the thing to remember is that if you only want strings that start with
CAT you'd never want to query with %CAT% because this could match
DOG_CATHY.
% is a wildcard that matches any number of characters including none.
if you want to match a single character you use _
if you actually need to
Hi,
I'm struggling with getting my tables partitioned. All the tables I want to
partition have a single primary key id which is a varchar. They also have a
created datetime field to let me know when each record was added to the db.
Ex:
CREATE TABLE `document` (
`document_id` varchar(50
mos [EMAIL PROTECTED] wrote: At 06:23 PM 4/15/2007, you wrote:
Hi,
I have a table with 2 million records but without an index or a primary
key. The column upon which I want to create an index is a varchar. Will
it give me any advantage when I have to do a select on the column?
BTW, here
Baron Schwartz [EMAIL PROTECTED] wrote: murthy gandikota wrote:
Hi,
I have a table with 2 million records but without an index or a primary key.
The column upon which I want to create an index is a varchar. Will it give me
any advantage when I have to do a select on the column?
BTW
Hi,
I have a table with 2 million records but without an index or a primary key.
The column upon which I want to create an index is a varchar. Will it give me
any advantage when I have to do a select on the column?
BTW, here is the scenario:
create table `test` (`phonenumber
murthy gandikota wrote:
Hi,
I have a table with 2 million records but without an index or a primary key. The column upon which I want to create an index is a varchar. Will it give me any advantage when I have to do a select on the column?
BTW, here is the scenario:
create table
At 06:23 PM 4/15/2007, you wrote:
Hi,
I have a table with 2 million records but without an index or a primary
key. The column upon which I want to create an index is a varchar. Will
it give me any advantage when I have to do a select on the column?
BTW, here is the scenario:
create
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hi,
I'm having trouble with the following:
In the MySQL 4 database I had the following values in an unique varchar
and there was no problem:
Gross
Groß
(the latter has the german sharp s character)
Now whenever I import this into the MySQL5
Hi all
Which of these two tables wiil yield the best performance in a table
with about 6 million entries (for rapid selects on either field):
table_using_char
field1 char(50),
field2 char(50),
filed 3 char(50),
separate unique indexes on all 3 fields
table_using_varchar
field1 varchar(50
Hi all
If I insert a value to great for a field (e.g. '123456' into a varchar(5)
field), mysql runs the insert without warning or error and cuts of what
doesn't fit.
How can I tell it to launch an error and abort the insert?
Thanks
Olaf
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For list archives: http
Varchar limit warning
Hi all
If I insert a value to great for a field (e.g. '123456' into a varchar(5)
field), mysql runs the insert without warning or error and cuts of what
doesn't fit.
How can I tell it to launch an error and abort the insert?
Thanks
Olaf
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MySQL General Mailing List
:37 PM
To
MySql mysql@lists.mysql.com
cc
Subject
Varchar limit warning
Hi all
If I insert a value to great for a field (e.g. '123456' into a varchar(5)
field), mysql runs the insert without warning or error and cuts of what
doesn't fit.
How can I tell it to launch an error
='STRICT_TRANS_TABLES';
select @@session.sql_mode;
You can read about sql_mode here.
http://dev.mysql.com/doc/refman/5.0/en/server-sql-mode.html
Donna
Olaf Stein [EMAIL PROTECTED] 01/05/2007 12:37 PM
To
MySql mysql@lists.mysql.com
cc
Subject
Varchar limit warning
Hi all
860.674.8796 / FAX: 860.674.8341
-Original Message-
From: Olaf Stein [mailto:[EMAIL PROTECTED]
Sent: Friday, January 05, 2007 1:52 PM
To: [EMAIL PROTECTED]
Cc: MySql
Subject: Re: Varchar limit warning - similar question
Thanks
That works nicely.
Why does that not have any effect
Farmington Ave.
Farmington, CT 06032
860.674.8796 / FAX: 860.674.8341
-Original Message-
From: Olaf Stein [mailto:[EMAIL PROTECTED]
Sent: Friday, January 05, 2007 2:26 PM
To: Jerry Schwartz
Subject: Re: Varchar limit warning - similar question
So what effect does e.g. int(3) have
, Olaf Stein [EMAIL PROTECTED] wrote:
Hi all
If I insert a value to great for a field (e.g. '123456' into a varchar(5)
field), mysql runs the insert without warning or error and cuts of what
doesn't fit.
How can I tell it to launch an error and abort the insert?
Thanks
Olaf
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MySQL General
I have a database with several tables that can have up to 100 000 rows
there is ~100 updates every seconds and ~100 select query on the same
table using locks.
The update is always on the same field a varchar(15), I believe it will
be recommended to change it to char(15) to improve performance
I have a database with several tables that can have up to 100 000 rows
there is ~100 updates every seconds and ~100 select query on the same
table with locks.
The update is always on the same field a varchar(15), I believe it will
be recommended to change it to char(15) to improve performance
Mike
At 02:42 PM 10/3/2006, you wrote:
If I have the following strings in a varchar column:
Piano Sonata 1 - Brendel
Piano Sonata 10 - Brendel
Piano Sonata 11 - Brendel
Piano Sonata 12 - Brendel
Piano Sonata 13 - Brendel
Piano Sonata 14 - Brendel
Piano Sonata 15 - Brendel
Piano Sonata
If I have the following strings in a varchar column:
Piano Sonata 1 - Brendel
Piano Sonata 10 - Brendel
Piano Sonata 11 - Brendel
Piano Sonata 12 - Brendel
Piano Sonata 13 - Brendel
Piano Sonata 14 - Brendel
Piano Sonata 15 - Brendel
Piano Sonata 16 - Brendel
Piano Sonata 17 - Brendel
Piano
FROM test
ORDER BY nr;
HTH,
Dan
On 10/3/06, James Eaton [EMAIL PROTECTED] wrote:
If I have the following strings in a varchar column:
Piano Sonata 1 - Brendel
Piano Sonata 10 - Brendel
Piano Sonata 11 - Brendel
Piano Sonata 12 - Brendel
Piano Sonata 13 - Brendel
Piano Sonata 14 - Brendel
Piano
) -- Extracts the last word
Mike
At 02:42 PM 10/3/2006, you wrote:
If I have the following strings in a varchar column:
Piano Sonata 1 - Brendel
Piano Sonata 10 - Brendel
Piano Sonata 11 - Brendel
Piano Sonata 12 - Brendel
Piano Sonata 13 - Brendel
Piano Sonata 14 - Brendel
Piano Sonata 15
I am looking for any suggestions to this problem. I have a table with a
varchar field. This field can hold textual or numeric data, but it is
stored in a varchar field so the database sees it all as text.
I need to be able to search and sort this field as if it were numeric.
For example, here
Hi Steve,
Try select * from table where field1=4% and field1=7% instead.
Sincerely,
Raj Mehrotra
[EMAIL PROTECTED]
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
Sent: Wednesday, September 27, 2006 11:24 PM
To: mysql@lists.mysql.com
Subject: making varchar field
sec)
Douglas Sims
[EMAIL PROTECTED]
On Sep 27, 2006, at 10:24 PM, [EMAIL PROTECTED] wrote:
I am looking for any suggestions to this problem. I have a table
with a
varchar field. This field can hold textual or numeric data, but it is
stored in a varchar field so the database sees it all
@lists.mysql.com
Subject: RE: making varchar field to act like numeric field
Hi Steve,
Try select * from table where field1=4% and field1=7% instead.
Sincerely,
Raj Mehrotra
[EMAIL PROTECTED]
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
Sent: Wednesday, September 27
Rajesh Mehrotra wrote:
Hi Steve,
Correction:
Use: select * from table where field1 like '4%' or like '5%' or like
'6%' or field1 like '7%';
This would not have the desired result as it would return things like
500 or 50 or 5,000,000 etc. You must use the cast as another reply
) |
+---+
| 0.00 |
+---+
1 row in set, 1 warning (0.00 sec)
Douglas Sims
[EMAIL PROTECTED]
On Sep 27, 2006, at 10:24 PM, [EMAIL PROTECTED] wrote:
I am looking for any suggestions to this problem. I have a table with a
varchar field. This field can
In the last episode (Sep 28), Steve Musumeche said:
I think this method will work, however, when trying these queries, I get
a SQL syntax error.
mysql select cast('34' AS decimal);
ERROR 1064 (42000): You have an error in your SQL syntax; check the
manual that corresponds to your MySQL
Dan,
Thank you, that works! FYI, you can treat the field like a number,
including sorting, numeric functions, etc.
For example,
select * from table order by (text_field+0.0)
Steve Musumeche
CIO, Internet Retail Connection
[EMAIL PROTECTED]
Dan Nelson wrote:
In the last episode (Sep
I'm using MySQL Linux version 4.1.21 standard.
I have a table with fields of a variety of types, including varchar(255) and
text (which might matter). When I do
SELECT MAX(LENGTH(x)) FROM tx;
where x is a varchar(255), I get back 266 as the result of the query!
This isn't listed as one
Jerry Schwartz wrote:
I'm using MySQL Linux version 4.1.21 standard.
I have a table with fields of a variety of types, including varchar(255) and
text (which might matter). When I do
SELECT MAX(LENGTH(x)) FROM tx;
where x is a varchar(255), I get back 266 as the result of the query
I'm using MySQL Linux version 4.1.21 standard.
I have a table with fields of a variety of types, including varchar(255)
and
text (which might matter). When I do
SELECT MAX(LENGTH(x)) FROM tx;
where x is a varchar(255), I get back 266 as the result of the query!
This isn't listed as one
: Paul DuBois [mailto:[EMAIL PROTECTED]
Sent: Monday, September 11, 2006 2:09 PM
To: Jerry Schwartz
Cc: mysql@lists.mysql.com
Subject: Re: Varchar mystery
Jerry Schwartz wrote:
I'm using MySQL Linux version 4.1.21 standard.
I have a table with fields of a variety of types, including varchar(255
--- -- -- ---
-- --- ---
idint(11) (NULL) NO PRI (NULL)
auto_increment select,insert,update,references
indicatorName varchar(255) utf8_general_ci YES
(NULL) select,insert,update,references
periodName
--- -- -- ---
-- --- ---
idint(11) (NULL) NO PRI (NULL)
auto_increment select,insert,update,references
indicatorName varchar(255) utf8_general_ci YES
(NULL) select,insert,update,references
periodNamevarchar(255) utf8_general_ci
--- -- -- ---
-- --- ---
idint(11) (NULL) NO PRI (NULL)
auto_increment select,insert,update,references
indicatorName varchar(255) utf8_general_ci YES
(NULL) select,insert,update,references
periodNamevarchar(255) utf8_general_ci
Hi,
2006/6/29, Joerg Bruehe [EMAIL PROTECTED]:
Hi Pooly, all,
Pooly wrote:
Hi,
I stumbled on one issue yesterday which took me some time to figure out.
the table is :
create table tt ( PCname varchar(5) not null default '');
insert into tt values ('Centaure');
So, by mistake I
Hi,
I stumbled on one issue yesterday which took me some time to figure out.
the table is :
create table tt ( PCname varchar(5) not null default '');
insert into tt values ('Centaure');
So, by mistake I inserted names which were too long for the field, but
then I tried to do queries
On Thursday 29 June 2006 08:18 am, Pooly wrote:
Hi,
I stumbled on one issue yesterday which took me some time to figure out.
the table is :
create table tt ( PCname varchar(5) not null default '');
insert into tt values ('Centaure');
(5) indicates a display width.
So, by mistake I
Hi Pooly, all,
Pooly wrote:
Hi,
I stumbled on one issue yesterday which took me some time to figure out.
the table is :
create table tt ( PCname varchar(5) not null default '');
insert into tt values ('Centaure');
So, by mistake I inserted names which were too long for the field, but
then I
(by Upscene Productions) and tried to fill my database with some
test data. However I was not able to set the option named Fill with to
Preset for TINYTEXT fields while it is allowed for VARCHAR fields. This
means that that tool makes some difference between these two types, but why?
AFAIK some
(by Upscene Productions) and tried to fill my database with some
test data. However I was not able to set the option named Fill with to
Preset for TINYTEXT fields while it is allowed for VARCHAR fields. This
means that that tool makes some difference between these two types, but
why?
TinyText
Hello,
I'm creating a new MySQL database from an existing Filemaker db.
My problem is that some of the existing 'numbers' in one column (it
was a text field in FMP) have leading zeros. eg: 003, 0007, 012,
001234. I need to maintain these numbers 'as is' - complete with
zeros. I've tried
as leading zeros.
Why not make the VARCHAR the PK and keep the datatype?
Martijn Tonies
Database Workbench - development tool for MySQL, and more!
Upscene Productions
http://www.upscene.com
My thoughts:
http://blog.upscene.com/martijn/
Database development questions? Check the forum!
http
something as leading zeros.
Why not make the VARCHAR the PK and keep the datatype?
Martijn Tonies
Database Workbench - development tool for MySQL, and more!
The manual states (among other things) declaring a column:
int(6) zerofill
will left pad the column with zeros.
003 will become 03
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