when I create a table, I always make the first column my unique-id, and make
this primary key auto-increment.
Does this mean that the table will be indexed by mysql on this key - or do I
need to explicitly do this too?
e.g.
create table note
(
note_id INTEGER(9) AUTO_INCREMENT PRIMARY KEY,
mytext varchar(255)
);
So do I need to add something to get mysql indexing on the primary key?
many thanks,
JJ
4  15453 
erehwon wrote: when I create a table, I always make the first column my unique-id, and make
this primary key auto-increment.
Does this mean that the table will be indexed by mysql on this key - or do I
need to explicitly do this too?
interesting question. I wanted to know the answer to this too, so I
looked it up in the documentation at www.mysql.com. the answer is "yes"
- the table is indexed. this can be verified by running 'SHOW INDEX FROM
<table_name>' using the mysql client.
/dave
erehwon wrote: when I create a table, I always make the first column my unique-id, and make
this primary key auto-increment.
Does this mean that the table will be indexed by mysql on this key - or do I
need to explicitly do this too?
interesting question. I wanted to know the answer to this too, so I
looked it up in the documentation at www.mysql.com. the answer is "yes"
- the table is indexed. this can be verified by running 'SHOW INDEX FROM
<table_name>' using the mysql client.
/dave
great :o) & thanks!
JJ
"Dave Roe" <da******@email .com> wrote in message
news:DH******** ***********@new sread2.news.pas .earthlink.net. .. erehwon wrote:
when I create a table, I always make the first column my unique-id, and
make this primary key auto-increment.
Does this mean that the table will be indexed by mysql on this key - or
do I need to explicitly do this too?
interesting question. I wanted to know the answer to this too, so I
looked it up in the documentation at www.mysql.com. the answer is "yes"
- the table is indexed. this can be verified by running 'SHOW INDEX FROM
<table_name>' using the mysql client.
/dave
great :o) & thanks!
JJ
"Dave Roe" <da******@email .com> wrote in message
news:DH******** ***********@new sread2.news.pas .earthlink.net. .. erehwon wrote:
when I create a table, I always make the first column my unique-id, and
make this primary key auto-increment.
Does this mean that the table will be indexed by mysql on this key - or
do I need to explicitly do this too?
interesting question. I wanted to know the answer to this too, so I
looked it up in the documentation at www.mysql.com. the answer is "yes"
- the table is indexed. this can be verified by running 'SHOW INDEX FROM
<table_name>' using the mysql client.
/dave This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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