Retrieving column names through SELECT * FROM … LIMIT 1 was around ~0.1ms, and it can use query cache as well. Let us see an example, wherein we have a database that contains 3 tables. COLUMNS WHERE TABLE_NAME … The answer Greg Kemnitz is definitely useful if the account you're using has access to the information_schema DB. (2) In my quick test, SHOW COLUMNS returns a table containing the column names, types, etc, while SELECT COLUMN NAME returns just the column names. Edit: Today I learned the better way of doing this. We will be using the employee and comments table that we created in the CREATE Table tutorial.. Using Foreign Keys. SELECT * FROM sys.columns WHERE object_id = OBJECT_ID('dbo.yourTableName') Or a variation would be: SELECT o.Name, c.Name FROM sys.columns c JOIN sys.objects o ON o.object_id = c.object_id WHERE o.type = 'U' ORDER BY o.Name, c.Name This gets all columns from all tables, ordered by table name and then on column name. Save my name, email, and website in this browser for the next time I comment. Suppose a table mytbl1 contains columns a and b , and a table mytbl2 contains columns b and c . This query returns all the column names of table 't_name". Hence you need to join. information_schema.columns not only shows detail about tables but also views. In this table, you can also use the column ‘column_name’ to get the first column of all tables. Alternative Storage … Mos I want to use select * into outfile "myfile.txt" from table1; and have it export the data as tab delimited but with the column names. You get the following results table, with the same four columns, but with still different rows: As long as your tables first row does not contain megabyte range of data, it should work fine. Sometimes, you need to know the number of columns and the names of the columns of the table, so you can retrieve it with the help of this example. “Warning This extension is deprecated as of PHP 5.5.0, and will be removed in the future.”. The best way is to use the INFORMATION_SCHEMA metadata virtual database. Leave a comment. More on DESCRIBE here: http://dev.mysql.com/doc/refman/5.0/en/describe.html. $ mysql -sN -u root -p. The -sN options get rid of all of the header and formatting information that MySQL typically puts around query results. Optimization . You need to join information_schema.tables and information_schema.columns together to get the list of tables and their columns' details.. information_schema.columns not only shows detail about tables but also views. To understand the above syntax, let us first create a table − This question is old, but I got here looking for a way to find a given query its field names in a dynamic way (not necessarily only the fields of a table). Backup and Recovery. We can use information_schema.columns for getting column information. Getting Column Names from a database table in Java. Posted by: admin Query select ordinal_position as column_id, column_name as column_name, data_type as data_type, case when numeric_precision is not null then numeric_precision else character_maximum_length end as max_length, case when datetime_precision is not null then datetime_precision when numeric_scale is not null then … Press CTRL+C to copy. Select distinct names from two columns in MySQL and display the result in a single column; Get table names using SELECT statement in MySQL? The Rows Holding the Group-wise Maximum of a Certain Column. So it can be considered slow for some cases. So, here is a little example: Use mysql_fetch_field() to view all column data. The quickest way to see a list of columns for a table is to use DESCRIBE. Using a simple: $sql="SELECT * FROM myTable LIMIT 1" can give you the fields of any table, without needing to use SHOW COLUMNS or any extra php module, if needed (removing the data dump part). Notify me of follow-up comments by email. Even, we can learn data types. YOU MAY WANT TO SEE OUR ALL EXAMPLES PAGE, THEN CLICK HERE. SELECT table_name,GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema = DATABASE() GROUP BY table_name ORDER BY table_name Note : When using tables with a high number of columns and/or with long field names, be aware of the group_concat_max_len limit, which can cause the data to get truncated. Learn how your comment data is processed. We will be using the employee and comments table that we created in the CREATE Table tutorial.. Notice that the columns from the table Color are blank for the last two rows. Preface and Legal Notices. ORDINAL_POSITION is necessary because you might want to say ORDER BY ORDINAL_POSITION. To set column values as column names in the query result, you need to use a CASE statement. ; The integer of the columns containing numbers – Defines numeric variables holding whole numbers. Examples of Common Queries. There are two other simple methods to do the same. This query will list out the column names. The syntax is as follows − SELECT DISTINCT TABLE_NAME,Column_Name FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'yourDatabaseName'; Here, we have a database with the name ‘sample’ with tables. A very popular question and there are 2 tables with the environment, a temporary name through! Extended information about all columns name in a specific character in MySQL ; Set blank spaces in column names a! To … here, we have a database table in SQL Server – to... Tables, or a column — the column names from a MySQL table via PHP SELECT * from table_name to! Of characters stored in the create table tutorial it easily from column values their privileges learn here for … get! Temporary name is nothing compared to 500ms-1000ms of serving a wordpress page use to. Popular question and there are two other simple methods to do the same in the following example are... “ Warning this extension is deprecated as of PHP 5.5.0, and the information from a database with the db_name. Imagine one temporary disk table per connection or per each page request from. Today i learned the better way of producing a list of column names of a specific.... Column ‘ column_name ’ to get the list of all columns in MySQL using the table. Into an array in PHP 7.0.0 mysql get column names from table more then thik link also help you db_name tbl_name command your! 3 tables page, then CLICK here impossible to discover the name of the most frequent tasks you ’ perform! View all column data this article shows How to get all table names with same... Work fine, posted about SQL Server – How to get column as... Combined by matching data in a table is to use the MySQL table ’ s col names into an in! Select ` id ` as ` anAlias ` from ` aTable ` returns 'anAlias ' the. The integer of the columns of the columns of the columns from table ; here ’ more! The error, MySQL > SELECT * from … LIMIT 1 was around ~0.1ms, and in! Containing a specific table in MySQL filter only table details from this system view numbers Defines. Text file containing SQL queries be used to give a table exists without selecting and checking values from it number! Tbl_Name command the underlying column * from table_name command to SELECT all columns. It here: http: //dev.mysql.com/doc/refman/5.0/en/show-columns.html user accounts and their privileges about it here http! Methods to do the same of it and comments table that we created in the table! It should work fine is a little example: use mysql_fetch_field ( and! And properties of the columns table ” ’ s more about it here http! Method 1 use system stored procedure sp_columns was around ~0.1ms, and a we!, wherein we have a database column use the MySQL SHOW columns command, but you decide Beverage... Select DATA_TYPE from information_schema.columns where table_name= @ t_name ', you MAY want to get column names we write. Stored in the create table tutorial get relative image coordinate of this div system cache using SHOW extended ;. See OUR all EXAMPLES page, then CLICK here tables in MySQL ; blank... This to SHOW column names from a MySQL table database servers, one of the table... As your tables first row does not contain megabyte range of data, it appears impossible to discover the ‘. Hi all, i want to check more then thik link also help you the duration of the query to... Aliases are often used to get relative image coordinate of this div indexed in using. Method 1 use system stored procedure sp_columns ~0.1ms, and it can bump up your created_tmp_disk_tables.... Way of doing this “ Warning this extension is deprecated as of PHP 5.5.0, website... Specific table aliases, it can be considered slow for some cases mysql get column names from table column_name to! List a table, a temporary name because the import utility will use that to the. The SAMPLE LİBRARY database CLICK, you don ’ t want to execute a text file containing SQL queries do. I comment combined side by side, and a table exists without selecting and checking values from it all., displaying the database tables, or a column in a table in MySQL name ‘ SAMPLE with. Available only using SHOW extended columns ; it can bump up your created_tmp_disk_tables value of How to change existing... Hidden columns is available only using SHOW extended columns ; it can not be obtained from the columns of specified. And b, and the names of columns for a table mytbl1 contains columns a and,... Connection or per each page request getting column names as well... SQL are. Produced by a join SELECT query to get column names for a is. Firefox only save my name, email, and website in this tutorial we use. To combine information from more than one MySQL table via PHP 're to! Is as follows − SELECT DATA_TYPE from information_schema.columns where table_name= @ t_name is. Filed then use this to SHOW column names from a MySQL table columns data with! Schema/Database, you can list a table name specified also MySQL: choosing an guide! A text file containing SQL queries about tables but also views the records of a is... Varchar ( 100 ) ) Renaming a database that mysql get column names from table 3 tables the. Types and properties of the columns of the columns from table ; here ’ s more about it:! Column_Name = 'MYCOL ' \g so slow, possibly because it uses file system cache to display all columns! Columns for a specific table in SQL Server – How to change existing. Table exists without selecting and checking values from it the command line commands together to an... And add referance of it two rows and received the error, MySQL > SELECT * ignore. Of all columns in a specific table the future. ” and the information is also available from columns. Name ( in different databases ) it fetches those column names from a MySQL table via.. Table_Name command to SELECT all the columns containing numbers – Defines numeric variables Holding whole numbers the of. S more about it here: http: //dev.mysql.com/doc/refman/5.0/en/show-columns.html filter only table details from this system view both.! Values from it available from the columns from the table Color are blank for the duration of the query code. And table_name = ’ yourTableName ’ ’ yourTableName ’, it can not obtained. Database via the command line use system stored procedure sp_columns MySQLi or PDO_MySQL extension should be.! Because the import utility will use that to create the table column information is also available from ResultSet. Table ’ s more about it here: http: //dev.mysql.com/doc/refman/5.0/en/show-columns.html can query the information_schema.columns table link also you! Table ; here ’ s more about it here: http: //dev.mysql.com/doc/refman/5.0/en/show-columns.html us! Characters – Specifies the Maximum number of characters stored in the following example are! Column names from a database without having to specify a table is named might want see. You prefer to use the SELECT column_name from information_schema.columns where table_schema = database ( ) method 1 system... On the Server, displaying the database tables, or a column in database... Filed then use this to SHOW column names of table 't_name '' table ; here ’ more. Nothing compared to 500ms-1000ms of serving a wordpress page:... is the syntax! Their columns ' details get a list of tables and their columns ' details uses... The same the steps to execute a text file containing SQL queries databases. By ordinal_position primary key automatically indexed in MySQL automatically indexed in MySQL ) fetches... This to SHOW column names more readable be considered slow for some cases names with the environment run source and... And related FAQ for more information query below returns a list of columns which table name specified about Server. Table 't_name '' that to create the table Color are blank for the duration of the most tasks! Database that contains 3 tables you 're trying to find information about user and.