SQL to SequoiaDB shell to CSharp

SequoiaDB 的查询用 json(bson)对象表示,下表以例子的形式显示了 SQL 语句,SequoiaDB shell 语句和 SequoiaDB CSharp 驱动程序语法之间的对照。

SQL SequoiaDB shell CSharp Driver
insert into employee( a, b ) values( 1, -1 ) db.sample.employee.insert( { a: 1, b: -1 } ) employee.insert( "{ 'a': 1, 'b': -1 }" )
select a,b from employee db.sample.employee.find( null, { a: "", b: "" } ) employee.query( "", "{ 'a': '', 'b': '' }", "", "" )
select * from employee db.sample.employee.find() employee.query()
select * from employee where age=20 db.sample.employee.find( { age: 20 } ) employee.query( "{ 'age': 20 }", "", "", "" )
select * from employee where age=20 order by name db.sample.employee.find( { age: 20 } ).sort( { name: 1 } ) employee.query( "{ 'age': 20 }", "", "{ 'name': 1 }", "" )
select * from employee where age > 20 and age < 30 db.sample.employee.find( { age: { $gt: 20, $lt: 30 } } ) employee.query( "{ 'age': { '$gt': 20, '$lt': 30 } }" , "", "", "" )
create index testIndex on employee( name ) db.sample.employee.createIndex( "testIndex", { name: 1 }, false ) employee.createIndex( "testIndex", "{ 'name': 1 }", false, false )
select * from employee limit 20 offset 10 db.sample.employee.find().limit( 20 ).skip( 10 ) employee.query( "", "", "", "", 10, 20 )
select count(*) from employee where age > 20 db.sample.employee.find( { age: { $gt: 20 } } ).count() employee.getCount( "{ 'age': { '$gt': 20 } }" )
update employee set a=a+2 where b=-1 db.sample.employee.update( { $inc: { a: 2 } },{ b: -1 } ) employee.update( "{ 'b': -1 }", "{ '$inc': { 'a': 2 } }", "" )
delete from employee where a=1 db.sample.employee.remove( { a: 1 } ) employee.delete( "{ 'a': 1 }" )
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