TCPchecksum for IPv4[edit]When TCP runs over IPv4, the method used to compute the checksum is defined in RFC 793:The checksum field is the 16 bit one's complement of th...
unsigned short checksum(unsigned short* usBuf, unsigned int nSize){ unsigned long usChksum=0; //Calculate the checksum while (nSize>1) { usChksum+=*usBuf++; nSize-=sizeof(unsigned short); } //If ...
sqlserver CheckSum
--代表来源端数据表CREATE TABLE tblOrg(c1 int primary key,c2 int,c3 nvarchar(10),c4 nvarchar(10),HashKey As CheckSum(c2,c3))CREATE INDEX idxOrgHash ON tblOrg(HashKey)--代表目的...
This step calculates checksums for one or more fields in the input stream and adds this to the output as a new field.为数据流输入的列计算校验码，并将输出作为新的一列。Step nameName of the step. Note:...
