Snowflake Basics How to Update Data How to Insert Data How to Delete Data Database Management How to Add a Default Value to a Column How to Add a Column How to Add a NOT NULL Constraint How to Alter Sequence How
Reference information for the delete changetype. The delete changetype deletes data from an existing table.
例2: (无主键,table lock) SELECT * FROM products WHERE name='Mouse' FOR UPDATE; 例3: (主键不明确,table lock) SELECT * FROM products WHERE id<>'3' FOR UPDATE; 例4: (主键不明确,table lock) SELECT * FROM products WHERE id LIKE '3' FOR UPDATE;例5:(主键不存在,gap锁) SELECT * FRO...
SnowflakeTarget SortCriterion SourceControlDetails SourceProcessingProperties SourceTableConfig SparkConnectorSource SparkConnectorTarget SparkSQL Spigot SplitFields SqlAlias StartingEventBatchCondition Statement StatementOutput StatementOutputData StatisticAnnotation StatisticModelResult StatisticSummary StatusDetails StorageDe...
CREATE TRIGGER delete_cascade_trigger AFTER DELETE ON ParentTable BEGIN DELETE FROM ChildTable WHERE ParentID = OLD.ID; END; 在上述代码中,delete_cascade_trigger是触发器的名称,ParentTable是父表的名称,ChildTable是子表的名称,ParentID是父表和子表之间的关联字段。 需要注意的是,SQLite的触发器只能在同一...
SnowflakeV2LinkedService SnowflakeV2Sink SnowflakeV2Source SparkAuthenticationType SparkConfigurationParametrizationReference SparkConfigurationReferenceType SparkJobReferenceType SparkLinkedService SparkObjectDataset SparkServerType SparkSource SparkThriftTransportProtocol SqlAlwaysEncryptedAkvAuthType SqlAlwaysEncryptedPropert...
SnowflakeTarget SortCriterion SourceControlDetails SourceProcessingProperties SourceTableConfig SparkConnectorSource SparkConnectorTarget SparkSQL Spigot SplitFields SqlAlias StartingEventBatchCondition Statement StatementOutput StatementOutputData StatisticAnnotation StatisticModelResult StatisticSummary StatusDetails StorageDe...
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SnowflakeDataset SnowflakeExportCopyCommand SnowflakeImportCopyCommand SnowflakeLinkedService SnowflakeSink SnowflakeSource SparkAuthenticationType SparkBatchJob SparkBatchJobResultType SparkBatchJobState SparkConfiguration SparkConfigurationListResponse SparkConfigurationReference SparkConfigurationReferenceType SparkConfigurat...
I have a table that already hadTTL time + INTERVAL 1 MONTH DELETEandttl_only_drop_parts = 1set when table was created. Table is partitioned slightly unusuallyPARTITION BY intDiv(bitShiftRight(id, 33), 86400), which in the end partitions data the same astoStartOfDay(time)(Snowflake-like...