====== Read_Column routine ======


 
==== Description ====
 
Returns one or more columns from a row in a table.
 
==== Syntax ====
 
**Read_Column**(//tablename//, //key//, //returncolumnlist//, //lockflag//)
 
==== Parameters ====
 
The Read_Column routine has the following parameter.

^Parameter^Description^^
|//Tablename//|Name of the table from which to read data.||
|//Key//|The key of the row containing the column information to read.||
|//returncolumnlist//|A column or list of columns to read from DICT.//tablename//. These columns are returned for the row specified in key. If //returncolumnlist// is null, all columns are returned.||
|//Lockflag//|Specifies whether or not the row is locked during the read operation.\\ \\ __Lockflag__ - __Description__\\ 0 - No locking takes place.\\ 1 - Row is locked.|

 
==== Returns ====
 
Returns the column or columns specified in //returncolumnlist//.
 
==== See Also ====
 
[[lock_routine|Lock]], [[read_row|Read_Row]], [[unlock|UnLock]], [[write_column|Write_Column]], [[readv|ReadV]], [[read|Read]]
 
==== Remarks ====
 
This command reads the company name for customer "1".

<code>
run Read_Column "SAMPLE_CUSTOMERS", 1, "COMPANY_NAME"
</code>