db.runCommand( { delete: <collection>, deletes: [ { q : <query>, limit : <integer>, collation: <document>, hint: <document|string> }, ... ], comment: <any>, let: <document>, // Added in MongoDB 5.0 ordered: <bo
您可以在 Atlas 用户界面中删除 Atlas Search 索引,也可以使用mongosh、Atlas CLI、 API或您首选语言支持的MongoDB 驱动程序以编程方式删除 Atlas Search 索引。 注意 您可以使用mongosh 命令或驾驶员辅助方法删除所有AtlasAtlas Search Atlas集群层上的Atlas Search索引。有关支持的驾驶员版本的列表,请参阅MongoDB驱动...
, currentop output, and logs . this option is available since mongodb 4.4 and will result in an exception at execution time if specified for an older server version. new in version 1.13 . hint string|array|object the index to use. specify either the index name as a string or the index...
Attempting to dump a collection with in-progress index builds before MongoDB 4.4 results in error, but the collection is not deleted. Aborting a primary index build does not cancel secondary index builds for replica sets or shard replica sets. Instead, MongoDB attempts to stop the in-progress...
Thedb.collection.drop()method anddropcommand create aninvalidateevent for any change streams opened on dropped collection. Trying to drop a collection with in-progress index builds before MongoDB 4.4 results in error, and the collection is not discarded. Aborting a primary index build does not ab...
{// mongodb: { deleted: true, name: 'Fluffy' }fluffy.restore(function(){// mongodb: { deleted: false, name: 'Fluffy' }});});});varexamplePetId=mongoose.Types.ObjectId("53da93b16b4a6670076b16bf");// INFO: Example usage of deleteById static methodPet.deleteById(examplePetId,...
EXPLAINSELECT*FROMtable_nameWHEREidIN(1,2,3); 1. 选择合适的删除方式:根据情况决定是否分批删除或其他方式。 优化查询条件: ALTERTABLEtable_nameADDINDEXindex_name(id); 1. 测试性能:使用如下代码进行性能测试。 SETprofiling=1;DELETEFROMtable_nameWHEREidIN(1,2,3);SHOWPROFILES;SHOWPROFILEALLFORQUERY1;...
mongo MongoDb oracle Oracle 每个应用可以设置独立的数据库连接参数,通常直接更改default参数即可: return [ 'default' => 'admin', ]; 切换连接 Db::connect 我们可以在数据库配置文件中定义多个连接信息 return [ 'default' => 'mysql', 'connections' => [ 'mysql' => [ // 数据库类型 'type' =>...
DELETEFROMtable_nameWHEREidIN(1,2,3,...,n); 1. 类图 下面是一个简单的类图,展示了本文中提到的一些关键类和它们之间的关系。 DeleteOptimization+optimize() : voidIndexUtil+addIndex(tableName: string, fieldName: string, indexName: string) : voidBatchDelete+deleteBatch(startIndex: int, batchSize...
MongoDBDatabaseGetResults MongoDBDatabaseListResult MongoDBDatabaseResource MongoDBResources MongoDBResourcesCreateUpdateMongoDBCollectionHeaders MongoDBResourcesCreateUpdateMongoDBCollectionOptionalParams MongoDBResourcesCreateUpdateMongoDBCollectionResponse MongoDBResourcesCreateUpdateMongoDBDatabaseHeaders MongoD...