IF SCHEMA_ID('dev') IS NULL BEGIN
  EXEC sp_executesql N'CREATE SCHEMA dev' 
END
GO

IF SCHEMA_ID('auditlog') IS NULL BEGIN
  EXEC sp_executesql N'CREATE SCHEMA auditlog' 
END
GO

IF SCHEMA_ID('core') IS NULL BEGIN
  EXEC sp_executesql N'CREATE SCHEMA core' 
END
GO

IF SCHEMA_ID('tmp') IS NULL BEGIN
  EXEC sp_executesql N'CREATE SCHEMA tmp' 
END
GO