C-Isam 함수 reference
Posted 2008/01/22 18:34|
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1.a Create and Destroy Files and Indexes
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Function |
Description |
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isbuild isopen isclose iscleanup iscluster
isrename iserase isaddindex isdelindex |
Creates a C-ISAM file Opens a C-ISAM file Closes a C-ISAM file Closes all of the opened C-ISAM files Puts the records of a file in the physical order defined by a key Changes the name of a C-ISAM file Removes a C-ISAM file Adds an index to a file Removes an index from a file |
1.b Access and Modify Records within Files
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Function |
Description |
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isstart isread iswrite isrewrite iswrcurr
currencies isrewrec isdelete isdelcurr isdelrec |
Chooses an index or record for retrieval Reads a record from a C-ISAM file Writes a record from a C-ISAM file Updatess a record from a C-ISAM file Writes a record from a C-ISAM file and makes it the current record Rewrites the current record Rewrites the record identified by record # Deletes a C-ISAM record Deletes the current record Deletes the record identified by record # |
1.c Lock Records or Files
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Function |
Description |
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islock isunlock isrelease |
Sets a lock on a C-ISAM file Removes a lock on a C-ISAM file Removes locks on records |
1.d Implement Transactions
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Function |
Description |
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isbegin iscommit isrollback islogopen islogclose isrecover |
Begins a transaction Completes a transaction Cancels a transaction Opens a transaction-log file Closes a transaction-log file Recovers C-ISAM files |
1.e Miscellaneous Functions
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Function |
Description |
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isaudit isuniqueid issetunique isindexinfo
isflush |
Maintains an audit trail Determines the last unique ID for a record Sets the starting unique ID Determines the characteristics of a file and its indexes Forces output to a C-ISAM file |
2.a Computer-Dependent Representation of Numbers and the C-ISAM Counterparts
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Function |
Description |
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ldchar stchar ldint stint ldlong stlong ldfloat stfloat ldfltnull stfltnull lddbl stdbl lddblnull stdblnull |
C-ISAM string ® C language string C language string ® C-ISAM string C-ISAM integer ® C language integer C language integer ® C-ISAM integer C-ISAM long ® C language long C language long ® C-ISAM long C-ISAM float ® C language float C language float ® C-ISAM float C-ISAM float ® C language float (check null) C language float ® C-ISAM float (check null) C-ISAM double ® C language double C language double ® C-ISAM double lddbl + check null stdbl + check null |
2.b Manipulate C-ISAM DECIMALTYPE Data Type
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Function |
Description |
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lddecimal stdecimal deccvasc dectoasc deccvint dectoint … decadd decsub decmul … |
Load a DECIMALTYPE number from a record Store a DECIMALTYPE number in a record Character string ® DECIMALTYPE number DECIMALTYPE number ® Character string Integer ® DECIMALTYPE number DECIMALTYPE number ® Integer … Adds two DECIMALTYPE numbers Subtracts two DECIMALTYPE numbers Multiplies two DECIMALTYPE numbers … |
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