create tmp table of column list of a table for future use

2002-04-05 Thread hong chen

mysql create table column_list (desc MYTABLE_NAME);

ERROR 1064: You have an error in your SQL syntax near 'desc MYTABLE_NAME)' at line 1


Anyone know how to make something like it?

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Re: create tmp table of column list of a table for future use

2002-04-05 Thread Alex Behrens

I believe it has to be like this:

create table column_list (MYTABLE_NAME DESC);

Thanks!

-Alex Big Al Behrens
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- Original Message -
From: hong chen [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, April 05, 2002 4:13 PM
Subject: create tmp table of column list of a table for future use


mysql create table column_list (desc MYTABLE_NAME);

ERROR 1064: You have an error in your SQL syntax near 'desc MYTABLE_NAME)'
at line 1


Anyone know how to make something like it?

-
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RE: create tmp table of column list of a table for future use

2002-04-05 Thread hong chen



-Original Message-
From: hong chen 
Sent: Friday, April 05, 2002 5:32 PM
To: 'Alex Behrens'
Subject: RE: create tmp table of column list of a table for future use


No luck. Oracle and Sql Server have system tables to check. 

mysql desc ATTRIBUTES;
+---+--+--+-+-+---+
| Field | Type | Null | Key | Default | Extra |
+---+--+--+-+-+---+
| NAME  | varchar(255) | YES  | | NULL|   |
| VALUE | varchar(255) | YES  | | NULL|   |
+---+--+--+-+-+---+
2 rows in set (0.02 sec)

mysql create table column_list ( ATTRIBUTES desc);
ERROR 1064: You have an error in your SQL syntax near 'desc)' at line 1
mysql create table column_list (desc ATTRIBUTES);
ERROR 1064: You have an error in your SQL syntax near 'desc ATTRIBUTES)' at line 1
mysql select Field from (desc ATTRIBUTES);
ERROR 1064: You have an error in your SQL syntax near 'desc ATTRIBUTES)' at line 1
mysql
-Original Message-
From: Alex Behrens [mailto:[EMAIL PROTECTED]]
Sent: Friday, April 05, 2002 5:24 PM
To: hong chen; [EMAIL PROTECTED]
Subject: Re: create tmp table of column list of a table for future use


I believe it has to be like this:

create table column_list (MYTABLE_NAME DESC);

Thanks!

-Alex Big Al Behrens
E-mail: [EMAIL PROTECTED]
Urgent E-mail: [EMAIL PROTECTED] (Please be brief!)
Phone: 651-482-8779
Cell: 651-329-4187
Fax: 651-482-1391
ICQ: 3969599
Owner of the 3D-Unlimited Network:
http://www.3d-unlimited.com
Send News:
[EMAIL PROTECTED]
- Original Message -
 
To: [EMAIL PROTECTED]
Sent: Friday, April 05, 2002 4:13 PM
Subject: create tmp table of column list of a table for future use


mysql create table column_list (desc MYTABLE_NAME);

ERROR 1064: You have an error in your SQL syntax near 'desc MYTABLE_NAME)'
at line 1


Anyone know how to make something like it?

-
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   http://lists.mysql.com/   (the list archive)

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RE: create tmp table of column list of a table for future use

2002-04-05 Thread Gurhan Ozen

Are you trying to create a new table with an existing table's structure only
? or with the structure and data? If you just wanna duplicate a table with
the data inside it you can use CREATE TABLE .. SELECT ... syntax. More info
is at: http://www.mysql.com/doc/C/R/CREATE_TABLE.html

IF you just wanna copy the structure, do a SHOW CREATE TABLE on the existing
table and copy and paste its CREATE TABLE syntax to create the new one with
a different name. See more info at:
http://www.mysql.com/doc/S/H/SHOW_CREATE_TABLE.html

Gurhan



-Original Message-
From: hong chen [mailto:[EMAIL PROTECTED]]
Sent: Friday, April 05, 2002 5:13 PM
To: [EMAIL PROTECTED]
Subject: create tmp table of column list of a table for future use


mysql create table column_list (desc MYTABLE_NAME);

ERROR 1064: You have an error in your SQL syntax near 'desc MYTABLE_NAME)'
at line 1


Anyone know how to make something like it?

-
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   http://lists.mysql.com/   (the list archive)

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RE: create tmp table of column list of a table for future use

2002-04-05 Thread hong chen



-Original Message-
From: hong chen 
Sent: Friday, April 05, 2002 5:50 PM
To: 'Gurhan Ozen'
Subject: RE: create tmp table of column list of a table for future use


I am trying to check if a certain column exists before I try to select it from the 
table.
in Oracle or Sql Server I would:

select count(*) from user_tab_columns (or sys_columns) where name='C_NAME';

mysql desc ATTRIBUTES;
+---+--+--+-+-+---+
| Field | Type | Null | Key | Default | Extra |
+---+--+--+-+-+---+
| NAME  | varchar(255) | YES  | | NULL|   |
| VALUE | varchar(255) | YES  | | NULL|   |
+---+--+--+-+-+---+
2 rows in set (0.02 sec)
mysql select count(*) from (desc ATTRIBUTES) where Field ='ID';
ERROR 1064: You have an error in your SQL syntax near 'desc ATTRIBUTES)' at line 1


thanx.




-Original Message-
From: Gurhan Ozen [mailto:[EMAIL PROTECTED]]
Sent: Friday, April 05, 2002 5:44 PM
To: hong chen; [EMAIL PROTECTED]
Subject: RE: create tmp table of column list of a table for future use


Are you trying to create a new table with an existing table's structure only
? or with the structure and data? If you just wanna duplicate a table with
the data inside it you can use CREATE TABLE .. SELECT ... syntax. More info
is at: http://www.mysql.com/doc/C/R/CREATE_TABLE.html

IF you just wanna copy the structure, do a SHOW CREATE TABLE on the existing
table and copy and paste its CREATE TABLE syntax to create the new one with
a different name. See more info at:
http://www.mysql.com/doc/S/H/SHOW_CREATE_TABLE.html

Gurhan



-Original Message-
 
Sent: Friday, April 05, 2002 5:13 PM
To: [EMAIL PROTECTED]
Subject: create tmp table of column list of a table for future use


mysql create table column_list (desc MYTABLE_NAME);

ERROR 1064: You have an error in your SQL syntax near 'desc MYTABLE_NAME)'
at line 1


Anyone know how to make something like it?

-
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   http://lists.mysql.com/   (the list archive)

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RE: create tmp table of column list of a table for future use

2002-04-05 Thread hong chen

Problem is I'm accessing mysql through scripting against a table 
that may or may not have ID field, 

select count(*) from (desc ATTRIBUTES) where Field ='ID';
if count(*)  0 then  
  select ID from ATTRIBUTES;
else
  do something else;
end if;


-Original Message-
From: Gurhan Ozen [mailto:[EMAIL PROTECTED]]
Sent: Friday, April 05, 2002 5:57 PM
To: hong chen
Subject: RE: create tmp table of column list of a table for future use


SHOW CREATE TABLE ... syntax will show you whether or not the field name is
there..

Gurhan


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