LCK1STRCD LOCK FIRST RECORD TAADBFY
The Lock First Record command is a testing aid. It is designed for the situation where you want to test whether your code is handling a locked record condition properly. You issue the LCK1STRCD command from a different job to lock the first record (by key or arrival sequence) and then test your program in your job. A typical command would be entered as: LCK1STRCD FILE(FILEA) If this is a keyed file, the first record would be read using the keyed access path. A screen is displayed describing the record which is locked. The relative record number is shown as well as the first 50 bytes from the record. When Enter is pressed, the program ends and the record is unlocked. The program opens the file for update (in order to achieve the lock), but does not update the record. You can also access the first record using an arrival sequence access path. Command parameters *CMD ------------------ FILE The qualified file name of the file. The library value defaults to *LIBL. MBR The member to be opened for update. The default is *FIRST for the first member. TYPE The type of access to be performed. The default is *FILE meaning that the first record in the file is read for update. If the file is keyed, it is the first record on the keyed access path. If the file is in arrival sequence, it is the first record on the arrival sequence access path. *ARR may be specified to force a keyed file to be read in arrival sequence. Restrictions ------------ None. Prerequisites ------------- The following TAA Tools must be on your system: SNDESCMSG Send escape message Implementation -------------- None, the tool is ready to use. Objects used by the tool ------------------------ Object Type Attribute Src member Src file ------ ---- --------- ---------- ---------- LCK1STRCD *CMD TAADBFY QATTCMD TAADBFYC *PGM CLP TAADBFYC QATTCL TAADBFYR *PGM RPG TAADBFYR QATTRPG TAADBFYD *FILE DSPF TAADBFYD QATTDDS