MySQL query to get column names?

Question

I\'d like to get all of a mysql table\'s col names into an array in php?

Is there a query for this?

Answer 1

I have done this in the past.

SELECT column_name
FROM information_schema.columns
WHERE table_name='insert table name here'; 

Answer 2

if you only need the field names and types (perhaps for easy copy-pasting into Excel):

SELECT COLUMN_NAME, DATA_TYPE
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA='databasenamegoeshere'
AND DATA_TYPE='decimal' and TABLE_NAME = 'tablenamegoeshere'

remove

DATA_TYPE='decimal'

if you want all data types

Answer 3

when you want to check your all table structure with some filed then use this code. In this query i select column_name,column_type and table_name for more details . I use order by column_type so i can see it easily.

SELECT `COLUMN_NAME`,COLUMN_TYPE,TABLE_NAME 
FROM `INFORMATION_SCHEMA`.`COLUMNS` 
WHERE `TABLE_SCHEMA`='yourdatabasename' order by DATA_TYPE;

If you want to check only double type filed then you can do it easily

SELECT `COLUMN_NAME`,COLUMN_TYPE,TABLE_NAME,DATA_TYPE 
FROM `INFORMATION_SCHEMA`.`COLUMNS` 
WHERE `TABLE_SCHEMA`='yourdatabasename' AND DATA_TYPE like '%bigint%'  order by DATA_TYPE;

if you want to check which field allow null type etc then you can use this

SELECT `COLUMN_NAME`,COLUMN_TYPE,TABLE_NAME,IS_NULLABLE,DATA_TYPE 
FROM `INFORMATION_SCHEMA`.`COLUMNS` 
WHERE `TABLE_SCHEMA`='yourdatabasename' and DATA_TYPE like '%bigint%' and IS_NULLABLE ='NO' order by COLUMN_TYPE;

you want to check more then thik link also help you.

https://dev.mysql.com/doc/refman/5.7/en/columns-table.html

Answer 4

Seems there are 2 ways:

DESCRIBE `tablename`

or

SHOW COLUMNS FROM `tablename`

More on DESCRIBE here: http://dev.mysql.com/doc/refman/5.0/en/describe.html

Answer 5

You can use following query for MYSQL:

SHOW columns FROM your-table;

Below is the example code which shows How to implement above syntax in php to list the names of columns:

$sql = "SHOW COLUMNS FROM your-table";
$result = mysqli_query($conn,$sql);
while($row = mysqli_fetch_array($result)){
    echo $row['Field']."<br>";
}

For Details about output of SHOW COLUMNS FROM TABLE visit: MySQL Refrence.

Answer 6

Try this one out I personally use it:

SHOW COLUMNS FROM $table where field REGEXP 'stock_id|drug_name'