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未验证 提交 eb37f025 编写于 作者: L lihuihui 提交者： Gitee
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update zh-cn/application-dev/reference/apis/js-apis-data-resultset.md. 

#16835 结果集 - 文档描述问题和代码规范问题
Signed-off-by: Nlihuihui <lihuihui29@huawei.com>
上级 43d1aae5
隐藏空白更改
内联 并排
Showing with 59 addition and 58 deletion
zh-cn/application-dev/reference/apis/js-apis-data-resultset.md
浏览文件 @ eb37f025
......@@ -12,12 +12,13 @@
```js
import dataRdb from '@ohos.data.rdb';
let predicates = new dataRdb.RdbPredicates("EMPLOYEE")
predicates.equalTo("AGE", 18)
let promise = rdbStore.query(predicates, ["ID", "NAME", "AGE", "SALARY", "CODES"])
let predicates = new dataRdb.RdbPredicates("EMPLOYEE");
predicates.equalTo("AGE", 18);
let promise = rdbStore.query(predicates, ["ID", "NAME", "AGE", "SALARY", "CODES"]);
promise.then((resultSet) => {
console.log(TAG + "resultSet columnNames:" + resultSet.columnNames);
console.log(TAG + "resultSet columnCount:" + resultSet.columnCount);})
console.log(TAG + "resultSet columnCount:" + resultSet.columnCount);
});
```
## ResultSet
......@@ -63,11 +64,11 @@ getColumnIndex(columnName: string): number
**示例：**
```js
resultSet.goToFirstRow()
const id = resultSet.getLong(resultSet.getColumnIndex("ID"))
const name = resultSet.getString(resultSet.getColumnIndex("NAME"))
const age = resultSet.getLong(resultSet.getColumnIndex("AGE"))
const salary = resultSet.getDouble(resultSet.getColumnIndex("SALARY"))
resultSet.goToFirstRow();
const id = resultSet.getLong(resultSet.getColumnIndex("ID"));
const name = resultSet.getString(resultSet.getColumnIndex("NAME"));
const age = resultSet.getLong(resultSet.getColumnIndex("AGE"));
const salary = resultSet.getDouble(resultSet.getColumnIndex("SALARY"));
```
### getColumnName
......@@ -93,9 +94,9 @@ getColumnName(columnIndex: number): string
**示例：**
```js
const id = resultSet.getColumnName(0)
const name = resultSet.getColumnName(1)
const age = resultSet.getColumnName(2)
const id = resultSet.getColumnName(0);
const name = resultSet.getColumnName(1);
const age = resultSet.getColumnName(2);
```
### goTo
......@@ -121,14 +122,14 @@ goTo(offset:number): boolean
**示例：**
```js
let predicatesgoto = new dataRdb.RdbPredicates("EMPLOYEE")
let promisequerygoto = rdbStore.query(predicatesgoto, ["ID", "NAME", "AGE", "SALARY", "CODES"])
let predicatesgoto = new dataRdb.RdbPredicates("EMPLOYEE");
let promisequerygoto = rdbStore.query(predicatesgoto, ["ID", "NAME", "AGE", "SALARY", "CODES"]);
promisequerygoto.then((resultSet) {
resultSet.goTo(1)
resultSet.close()
resultSet.goTo(1);
resultSet.close();
}).catch((err) => {
console.log('query failed')
})
console.log('query failed');
});
```
### goToRow
......@@ -154,14 +155,14 @@ goToRow(position: number): boolean
**示例：**
```js
let predicatesgotorow = new dataRdb.RdbPredicates("EMPLOYEE")
let promisequerygotorow = rdbStore.query(predicatesgotorow, ["ID", "NAME", "AGE", "SALARY", "CODES"])
let predicatesgotorow = new dataRdb.RdbPredicates("EMPLOYEE");
let promisequerygotorow = rdbStore.query(predicatesgotorow, ["ID", "NAME", "AGE", "SALARY", "CODES"]);
promisequerygotorow.then((resultSet) {
resultSet.goToRow(5)
resultSet.close()
resultSet.goToRow(5);
resultSet.close();
}).catch((err) => {
console.log('query failed')
})
console.log('query failed');
});
```
### goToFirstRow
......@@ -182,14 +183,14 @@ goToFirstRow(): boolean
**示例：**
```js
let predicatesgoFirst = new dataRdb.RdbPredicates("EMPLOYEE")
let promisequerygoFirst = rdbStore.query(predicatesgoFirst, ["ID", "NAME", "AGE", "SALARY", "CODES"])
let predicatesgoFirst = new dataRdb.RdbPredicates("EMPLOYEE");
let promisequerygoFirst = rdbStore.query(predicatesgoFirst, ["ID", "NAME", "AGE", "SALARY", "CODES"]);
promisequerygoFirst.then((resultSet) {
resultSet.goToFirstRow()
resultSet.close()
resultSet.goToFirstRow();
resultSet.close();
}).catch((err) => {
console.log('query failed')
})
console.log('query failed');
});
```
### goToLastRow
......@@ -209,14 +210,14 @@ goToLastRow(): boolean
**示例：**
```js
let predicatesgoLast = new dataRdb.RdbPredicates("EMPLOYEE")
let promisequerygoLast = rdbStore.query(predicatesgoLast, ["ID", "NAME", "AGE", "SALARY", "CODES"])
let predicatesgoLast = new dataRdb.RdbPredicates("EMPLOYEE");
let promisequerygoLast = rdbStore.query(predicatesgoLast, ["ID", "NAME", "AGE", "SALARY", "CODES"]);
promisequerygoLast.then((resultSet) {
resultSet.goToLastRow()
resultSet.close()
resultSet.goToLastRow();
resultSet.close();
}).catch((err) => {
console.log('query failed')
})
console.log('query failed');
});
```
### goToNextRow
......@@ -236,14 +237,14 @@ goToNextRow(): boolean
**示例：**
```js
let predicatesgoNext = new dataRdb.RdbPredicates("EMPLOYEE")
let promisequerygoNext = rdbStore.query(predicatesgoNext, ["ID", "NAME", "AGE", "SALARY", "CODES"])
let predicatesgoNext = new dataRdb.RdbPredicates("EMPLOYEE");
let promisequerygoNext = rdbStore.query(predicatesgoNext, ["ID", "NAME", "AGE", "SALARY", "CODES"]);
promisequerygoNext.then((resultSet) {
resultSet.goToNextRow()
resultSet.close()
resultSet.goToNextRow();
resultSet.close();
}).catch((err) => {
console.log('query failed')
})
console.log('query failed');
});
```
### goToPreviousRow
......@@ -263,14 +264,14 @@ goToPreviousRow(): boolean
**示例：**
```js
let predicatesgoPrev = new dataRdb.RdbPredicates("EMPLOYEE")
let promisequerygoPrev = rdbStore.query(predicatesgoPrev, ["ID", "NAME", "AGE", "SALARY", "CODES"])
let predicatesgoPrev = new dataRdb.RdbPredicates("EMPLOYEE");
let promisequerygoPrev = rdbStore.query(predicatesgoPrev, ["ID", "NAME", "AGE", "SALARY", "CODES"]);
promisequerygoPrev.then((resultSet) {
resultSet.goToPreviousRow()
resultSet.close()
resultSet.goToPreviousRow();
resultSet.close();
}).catch((err) => {
console.log('query failed')
})
console.log('query failed');
});
```
### getBlob
......@@ -296,7 +297,7 @@ getBlob(columnIndex: number): Uint8Array
**示例：**
```js
const codes = resultSet.getBlob(resultSet.getColumnIndex("CODES"))
const codes = resultSet.getBlob(resultSet.getColumnIndex("CODES"));
```
### getString
......@@ -322,7 +323,7 @@ getString(columnIndex: number): string
**示例：**
```js
const name = resultSet.getString(resultSet.getColumnIndex("NAME"))
const name = resultSet.getString(resultSet.getColumnIndex("NAME"));
```
### getLong
......@@ -348,7 +349,7 @@ getLong(columnIndex: number): number
**示例：**
```js
const age = resultSet.getLong(resultSet.getColumnIndex("AGE"))
const age = resultSet.getLong(resultSet.getColumnIndex("AGE"));
```
### getDouble
......@@ -374,7 +375,7 @@ getDouble(columnIndex: number): number
**示例：**
```js
const salary = resultSet.getDouble(resultSet.getColumnIndex("SALARY"))
const salary = resultSet.getDouble(resultSet.getColumnIndex("SALARY"));
```
### isColumnNull
......@@ -400,7 +401,7 @@ isColumnNull(columnIndex: number): boolean
**示例：**
```js
const isColumnNull = resultSet.isColumnNull(resultSet.getColumnIndex("CODES"))
const isColumnNull = resultSet.isColumnNull(resultSet.getColumnIndex("CODES"));
```
### close
......@@ -414,12 +415,12 @@ close(): void
**示例：**
```js
let predicatesClose = new dataRdb.RdbPredicates("EMPLOYEE")
let promiseClose = rdbStore.query(predicatesClose, ["ID", "NAME", "AGE", "SALARY", "CODES"])
let predicatesClose = new dataRdb.RdbPredicates("EMPLOYEE");
let promiseClose = rdbStore.query(predicatesClose, ["ID", "NAME", "AGE", "SALARY", "CODES"]);
promiseClose.then((resultSet) {
resultSet.close()
resultSet.close();
}).catch((err) => {
console.log('resultset close failed')
})
console.log('resultset close failed');
});
```
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