READ Statement | 台灣精品獎-歷屆得獎名單
![READ Statement](https://i.imgur.com/DERULla.jpg)
READstatementusedtoreadtherecordsfromthefile.OnlyonerecordcanbeREADfromthefile.ThefilemustbeopenedinINPUTorI-Omodetoperform ...
![READ Statement](https://i.imgur.com/DERULla.jpg)
READ statement is used to retrieve a record from the file. At a time, only one record is retrieved from the file.
Points to note -
The file should open in INPUT or I-O mode to perform the READ statement. The READ statement is used for all types of (sequential, indexed and relative) files. A simple READ statement is used when the ACCESS MODE is SEQUENTIAL or ACCESS MODE is RANDOM.Syntax -
SEQUENTIAL Read (for sequential, indexed and relative files) -
READ logical-file-name [INTO ws-record-name] [AT END statements-set1] [NOT AT END statements-set2] [END-READ].RANDOM Read (for indexed and relative files) -
READ logical-file-name [INTO ws-record-name] [KEY IS key-variable] [INVALID KEY statements-set3] [NOT INVALID KEY statements-set4] [END-READ].No...
COBOL file status COBOL READ COBOL CALL USING COBOL OPEN I-O COBOL WRITE COBOL READ previous Cobol input output file COBOL SORT 氣密 橫 拉 門 金舒醫護方墊 非動力式治療床墊(未滅菌) 宏佳騰300r hertv系統 鑫元鴻實業股份有限公司評論 逍遙游-當代東方合香的心靈之旅 技嘉工業電腦 Michelin Uptis price
COBOL | 台灣精品獎-歷屆得獎名單
Read verb is used to read the file records. The function of read is to fetch records from a file. At each read verb, only one record can be read into the file ... Read More
READ Statement | 台灣精品獎-歷屆得獎名單
READ statement used to read the records from the file. Only one record can be READ from the file. The file must be opened in INPUT or I-O mode to perform ... Read More
READ statement | 台灣精品獎-歷屆得獎名單
For sequential access, the READ statement makes the next logical record from a file available to the object program. For random access, the READ statement ... Read More
READ Statement (COBOL) | 台灣精品獎-歷屆得獎名單
The READ Statement ... logical record from a file. For random access, the READ statement makes available a specified record from a mass storage file. General ... Read More
COBOL File Operations with Sample Programs | 台灣精品獎-歷屆得獎名單
READ File in COBOL ... All the input files must be READ in PROCEDURE DIVISION before the records in the file we use further. If we want to read the content of any ... Read More
COBOL Program to read a flat file sequentially and write it to ... | 台灣精品獎-歷屆得獎名單
2012年7月10日 — PROCEDURE DIVISION. OPEN INPUT FILEX. PERFORM READ-PARA THRU END-PARA UNTIL END-OF-FILE = 'Y'. CLOSE FILEX. STOP RUN. READ ... Read More
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