第一代Unix系统中的Basic语言非常原始,只支持简单的基本语句,比如—— for语句:for name = expr expr statement if语句:if expr statement goto语句:goto expr 以及一些数学运算符,比如+、-、*、/、<、>等,以及一些简单的函数,比如sin、cos、log等。 四、ed行编辑器 在Linux系统下,vi/vim是查看编辑文本文件...
if((pid = fork()) <0) err_sys("fork error"); elseif(pid >0) { exit(0);/* parent from second fork == first child */ } /* * We're the second child; our parent becomes init as soon * as our real parent calls exit() in the statement above. * Here's where we'd continu...
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* as our real parent calls exit() in the statement above. * Here's where we'd continue executing, knowing that when * we're done, init will reap our status. */ printf("file %s, line %d, child 2, getpid() = %d\n", __FILE__, __LINE__, getpid()); printf("second child, ...
--recommended usage, statement 1 SELECT CAST(cast(current_date AS FORMAT 'yyyymmdd') as varchar(8)) select current_date (format 'YYYYMMDD') (varchar(8)) --timestamp 转 字符串 --recommended usage, statement 1 SELECT CAST(CAST(TIMESTAMP'2010-03-12 14:32:45' AS FORMAT 'yyyymmddbhh:mi:...
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if ((V_OD_erg != SQL_SUCCESS) && (V_OD_erg != SQL_SUCCESS_WITH_INFO)) { printf("Fehler im AllocStatement %d\n",V_OD_erg); SQLGetDiagRec(SQL_HANDLE_DBC, V_OD_hdbc,1, V_OD_stat,&V_OD_err,V_OD_msg,100,&V_OD_mlen); ...
{ "Version": "2012-10-17", "Statement": [ { "Sid": "AllowBucketStat", "Effect": "Allow", "Action": [ "s3:HeadBucket" ], "Resource": "*" }, { "Sid": "AllowThisBucketOnly", "Effect": "Allow", "Action": "s3:*", "Resource": [ "arn:aws:s3:::<your-restricted-bucket...
288 Statements and loops...289 The if statement...
//*Job Statement line-1//*Job Statement line-2//* It will run against DB2 sub-system DB2T//STEP01 EXEC PGM=DSNUTILB,PARM='DB2T'//STEPLIB DD DISP=SHR,DSN=DB2.V9R1.DB2T.SDSNEXIT// DD DISP=SHR,DSN=DB2.V9R1.SDSNLOAD//SYSPRINT DD SYSOUT=*//SYSOUT DD SYSOUT=*//SYSREC...