php/yii2
1
0
Fork 0
mirror of https://github.com/yiisoft/yii2.git synced 2025-08-14 14:28:27 +08:00
Code Issues Packages Projects Releases Wiki Activity

improved doc [skip ci]

Browse Source
This commit is contained in:
Qiang Xue
2014-11-23 13:14:42 -05:00
parent 646f233f48
commit aa92512974
1 changed files with 4 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
docs/guide/db-active-record.md
View File

@ -198,8 +198,10 @@ $customer = Customer::findAll([
]);
```
> Note: Neither `findOne()` nor `one()` adds `LIMIT 1` to the query so if you need "any active customer"
you should add limit manually i.e. `Customer::find()->where(['status' => Customer::STATUS_ACTIVE])->limit(1)->one();`.
> Note: By default neither `findOne()` nor `one()` will add `LIMIT 1` to the query. This is fine and preferred
if you know the query will return only one or a few rows of data (e.g. if you are querying with some primary keys).
However, if the query may potentially return many rows of data, you should call `limit(1)` to improve the performance.
For example, `Customer::find()->where(['status' => Customer::STATUS_ACTIVE])->limit(1)->one()`.
### Retrieving Data in Arrays