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Christopher Dale

3 total

On This Page:

  1. 1 iSQL sucks, so make it work better
  2. 2 Scripting schema updates in MSSQL #1
  3. 3 Retrieve MSSQL table information

iSQL sucks, so make it work better

to sql unix linux tsql language query transact structured odbc isql unixodbc by chrelad on Oct 28, 2008
Runs the SQL code located in a file you pass as a parameter against the DSN you specify as a second parameter.

What does it need?:
-----------------------------------
* isql (if you're reading this, you should have this)
* A pager (less/more/most/etc, you should have this)
* bash (you can try it in your shell, but no guarantees)
* tr (you should have this)
* sed (you should have this)

The code:
-----------------------------------
#!/bin/bash
# {{{ sql $1 $2 - Run a SQL script
function sql
{
      tr '\n' ' ' < "$1" | tr '\t' ' ' | isql "$2" Username Password | sed '1,8d' | sed 's/^.*SQL> //g' | $PAGER
}
# }}}


Parameters:
-----------------------------------
$1 = The file that contains SQL
$2 = The DSN you want to run the SQL against


What does it do?:
-----------------------------------
It chops off the extraneous "thing" that is spit out whenever you start iSQL, it looks like this:

+---------------------------------------+
| Connected!                            |
|                                       |
| sql-statement                         |
| help [tablename]                      |
| quit                                  |
|                                       |
+---------------------------------------+
SQL>


and then it pipes everything into your specified pager ($PAGER) so you can at least scroll around in the results instead of seeing an ASCII art wrapped mess of your results.

Example use:
-----------------------------------
username@host $> sql ~/sqlscripts/getallusers.sql DSNName


Notes:
-----------------------------------
For my purposes I use the same credentials for all my databases (so I don't forget them) which is why they are hardcoded in the function and not passed into the function.

By the way, if anyone has any time on there hands, could you please pick up the slack on the development of this program. It's about the only CLI tool (that I know of) that can work with TSQL on a MSSQL 2000 server. Or, if someone knows of something better, let me know!

Thanks:
-----------------------------------
Thanks everyone, and I hope others find this somewhat useful (although I know it's a far cry from perfect),

Chrelad

Scripting schema updates in MSSQL #1

to sql tsql database mssql schema update tables microsoft columns query scripting information_schema alter altering by chrelad on Aug 08, 2007 1 Comments
This SQL statement will alter a table only if a column in the table to be altered does NOT contain a column named 'FavoriteColorId'.

From: http://haacked.com/

IF NOT EXISTS
(
    SELECT * FROM [information_schema].[columns]
    WHERE    table_name   = 'Customer'
    AND      table_schema = 'dbo'
    AND      column_name  = 'FavoriteColorId'
)
BEGIN
    ALTER TABLE [dbo].[Customer]
    ADD FavoriteColorId int

Retrieve MSSQL table information

to sql server tsql mssql table microsoft column information properties sysproperties systables data type types length columns by chrelad on Aug 08, 2007
Retrieve tons of information (length, data type, name, etc.) of columns for a table. Works in (T|MS)SQL (all I've tested it in).

SELECT * FROM information_schema.columns WHERE table_name = 'Customers'
3 total

On This Page:

  1. 1 iSQL sucks, so make it work better
  2. 2 Scripting schema updates in MSSQL #1
  3. 3 Retrieve MSSQL table information