## a simple sql builder for mysql.

### Todo
- [x] select 
- [x] insert
- [x] update
- [ ] delete

### Raw:
1. raw        = raw
2. string     = raw#string
3. table      = raw#table
4. column     = raw#column
5. expression = raw#expression
6. orderBy    = raw#order

### api:

1. table(tablename:string, as?:string) 


``` javascript
import { table } from '@stormzx/sqlbuilder'

let u = table('users', 'u')

let transform = `
  # use like object
  u                   => ${u}
  u.id                => ${u.id}
  u.userId            => ${u.userId}
  u.userId.as('uid')  => ${u.userId.as('uid')}

  # use like function
  u('id', 'userId')           = [u.id, u.userId]            => ${u('id', 'userId')}
  u('id', ['userId', 'uid'])  = [u.id, u.userId.as('uid')]  => ${u('id', ['userId', 'uid'])}
`

console.log(transform)

// Output:
// # use like object
// u                   => `users` as `u`
// u.id                => `u`.`id`
// u.userId            => `u`.`user_id`
// u.userId.as('uid')  => `u`.`user_id` as `uid`

// # use like function
// u('id', 'userId')           = [u.id, u.userId]            => `u`.`id`,`u`.`user_id`
// u('id', ['userId', 'uid'])  = [u.id, u.userId.as('uid')]  => `u`.`id`,`u`.`0` as `uid`

```

2. raw(rawSql: string)
3. escape(value: any)
4. escapeId(column: string)
5. SQLBuilder
``` javascript
import {SQLBuilder, table} from '@stormzx/sqlbuilder'
let u = table('users', 'u')


```