ZEROIFNULL The ZEROIFNULL function accepts only one parameter and, as its name suggests, returns 0 if the parameter is null. Otherwise, it returns the value of the parameter: SET val=NULL; SELECT ZEROIFNULL($val) as VAL; SET val=10; SELECT ZEROIFNULL($val) as VAL; Note: T...
if(rejectedPutBufferHandler !=null) { this.ringBuffer.setRejectedPutHandler(rejectedPutBufferHandler); } if(rejectedTakeBufferHandler !=null) { this.ringBuffer.setRejectedTakeHandler(rejectedTakeBufferHandler); } // fill in all slots of the RingBuffer bufferPaddingExecutor.paddingBuffer(); // star...
rejectedPutHandler.rejectPutBuffer(this, uid); return false; } // 1. pre-check whether the flag is CAN_PUT_FLAG int nextTailIndex = calSlotIndex(currentTail + 1); if (flags[nextTailIndex].get() != CAN_PUT_FLAG) { rejectedPutHandler.rejectPutBuffer(this, uid); return false; } //...
* @return */publicsynchronizedlongnextId(){longcurrStmp=getNewstmp();if(currStmp<lastStmp){thrownewRuntimeException("Clock moved backwards. Refusing to generate id");}if(currStmp==lastStmp){//相同毫秒内,序列号自增sequence=(sequence+1)&MAX_SEQUENCE;//同一毫秒的序列数已经达到最大if(sequence=...
Which service does SnowFlake use to provide the Zero-Copy cloning functionality? SSD Cache of the Virtual Warehouses Cache Metadata from the service layer. What would happen if we executed the following command? CREATE OR REPLACE TABLE newTable CLONE table1; “newTable” is created with all th...
There are two kind of rows: those with a revenue = zero where you want a fee of zero those with a revenue != zero where you want a calculation You can use two queries for these, glueing the results ... Thorsten Kettner 94.1k ...
Whereas if you live inTurkey, and the declared value of your ordered items is over € 22, for you to receive a package, you will have to pay additional import tax of 18% which will be € 3.96 to the courier service. How can I cancel my order?Chevron down iconChevron up icon ...
Zero-Copy Cloning Creating a Transient Schema Fail-Safe Data Sharing Creating a Reader Account AUTOINCREMENT Creating a Task Aggregation Joins Date and Time Functions Format Functions Analytics and Window Functions Temporary Tables Subqueries Strings ...
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which can be sized independently and are completely isolated from each other. Developers can also create Feature Branch Databases in a matter of seconds to work on their own use cases and development efforts. With Zero Copy Cloning, production databases can be cloned quickly without having to dupl...