DbUtils class

DataStorageItem|Entry对象

Constructors

DbUtils()

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

count({required String schema, required String fields, required SqlWhereBuilder builder}) → Future<int?>

统计数据 schema 数据表结构 fields 数据表字段

deleteInTx({required String schema, required String fields, required SqlWhereBuilder builder}) → void

删除数据 schema 数据表结构 fields 数据表字段

exists({required String schema, required String fields, required SqlWhereBuilder builder}) → Future<bool>

是否存在数据 schema 数据表结构 fields 数据表字段

insertOrReplace<T>(T data, {required SqlWhereBuilder builder}) → void

插入或替换数据 data 数据对象或列表 builder 根据条件插入或更新数据

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

query({required String schema, required String fields, required SqlWhereBuilder builder}) → Future<String?>

查询数据(当前执行sql后查询有多条记录时默认返回第一条) schema 数据表结构 fields 数据表字段 返回json数据

queryList({required String schema, required String fields, required SqlWhereBuilder builder}) → Future<String?>

查询数据集 schema 数据表结构 fields 数据表字段 返回json数据

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

instance → DbUtils

no setter