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Christopher Dale

3 total

On This Page:

  1. 1 Case sensitivity in PostgreSQL
  2. 2 Scripting schema updates in MSSQL #1
  3. 3 Retrieve MSSQL table information

Case sensitivity in PostgreSQL

to databases sql select database tables table column columns query postgresql postgre psql rdbm names name lower upper case lowercase uppercase statement by chrelad on Sep 18, 2008
When I started using PostgreSQL, it seemed odd that when I created a table called Users with column names like userId, userPassword, etc. When I would select these items from the table, the column and table names would all be in lowercase. It's quite simple really, I wasn't using quotes :) Below is an example of how to maintain your case in PostgreSQL:

This will all come out lowercase
create table Users (
  userId integer unique not null,
  userFirstName varchar(50) not null,
  userLastName varchar(50) not null
);


Whereas this will come out as you expect it to
create table "Users" (
  "userId" integer unique not null,
  "userFirstName" varchar(50) not null,
  "userLastName" varchar(50) not null
);

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 Case sensitivity in PostgreSQL
  2. 2 Scripting schema updates in MSSQL #1
  3. 3 Retrieve MSSQL table information