Use common
USE T23E001
INSERT INTO T23E001.DBO.ACCOUNT_MASTER
SELECT AccCode, AccName, AccType, AccAgentCode, AccGroupCode, AccAdd1, AccAdd2, AccAdd3, AccCityName, AccCityPin, AccPhone, AccMobile, AccFax, AccEmail,
AccResident, AccGSTNo, AccCSTNo, AccPANNo, AccVATNo, AccContPerson, AccRef, AccCrLimit, AccCrDays, 0, 'Dr', 0, AccTANNo,
AccKSTNo, TDSYesNo, TDSAccount, JobType, DiscPerc, RDPerPcs, RDPerMts, InsPolicyNo, Dhara, DharaDays, TransName, AccAdd21, AccAdd22, AccAdd23,
AccCityName2, AccCityPin2, BlackListed, BankDetail, ExcessRate, SeriesName, CommPerc, TDSLimit, BankName, AccountNo, IFSCCode, Branch, LessDays,
PackPerPcs, BankCommPerc, BankCommLessPerc, PackPerMts, PostageCharge, Taxable, GSTIN, CompScheme, GSTCategory, ECommGSTIN, GSTRegDate,
AccManager, CityDistanceKM, SMAccCode, TCSApplicable, TCSCollectFrom
FROM COMMON.DBO.ACCOUNT_MASTER WHERE AccCode NOT IN (SELECT AccCode FROM T23E001.DBO.ACCOUNT_MASTER)