github.com/mithrandie/csvq@v1.18.1/docs/_posts/2006-01-02-environment-variable.md (about)

     1  ---
     2  layout: default
     3  title: Environment Variable - Reference Manual - csvq
     4  category: reference
     5  ---
     6  
     7  # Environment Variable
     8  
     9  * [SET ENVIRONMENT_VARIABLE](#set_env)
    10  * [UNSET ENVIRONMENT_VARIABLE](#unset_env)
    11  
    12  
    13  ### Set Environment Variable
    14  {: #set_env}
    15  
    16  ```sql
    17  SET @%env_var_name TO value;
    18  SET @%env_var_name = value;
    19  ```
    20  
    21  _value_
    22  : [string]({{ '/reference/value.html#string' | relative_url }}) or [identifier]({{ '/reference/statement.html#parsing' | relative_url }})
    23  
    24  A set environment variable statement is used to set the value to the environment variable. 
    25  
    26  
    27  ### Unset Environment Variable
    28  {: #unset_env}
    29  
    30  ```sql
    31  UNSET @%env_var_name;
    32  ```
    33  
    34  A unset environment variable statement is remove the environment variable. 
    35  
    36