edbNames.RODBC_Access: Retrieve table names in a MS Access database (referenced by...
In easyrodbcaccess: Simple Database Interface for SQLite, MySQL and MS Access
Description
Usage
Arguments
Value
Author(s)
See Also
Examples
Description
Retrieve table names in a MS Access database (referenced by 'edb').
Usage
1
2
3
4
5
Arguments
edb
An object of class 'edb', such as returned by edb.
onlyNames
Single logical. If TRUE only returns the table names (vector),
and if FALSE returns a detailed table as in
sqlTables.
testFiles
Single logical. Should the function test for the presence
(file.exist()) of the needed files in the folder before trying
to fetch information from the database?
...
Additional parameters to be passed to dbListTables.
Value
The function returns the list of tables found in the database.
Author(s)
Julien MOEYS <Julien.Moeys@mark.slu.se>
See Also
Examples
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library( "easyrodbcaccess" )
# System check. Ingnore this or set 'testODBC' to TRUE
testODBC <- (class(try(odbcDataSources())) != "try-error") & # Check (R)ODBC
(Sys.info()[[ "sysname" ]] == "Windows") & # Only MS Windows
(.Machine$"sizeof.pointer" == 4) # Only 32-bits
### Windows only:
if( testODBC ){
### Make a copy of MS Access example database:
# (a database of soil profile description)
file.copy(
from = system.file( "soils.mdb", package = "easyrodbcaccess" ),
to = "soils.mdb"
)
# soils.db is now in your working directory.
### Describe the database (NB: this is not a connection)
myDb <- edb( dbType = "RODBC_Access", dbName = "soils.mdb" )
### Use the database:
# List the tables:
edbNames( myDb )
### Clean-up
file.remove( "soils.mdb" )
### Access 2007 ---------------------------------------------
file.copy(
from = system.file( "soils.accdb", package = "easyrodbcaccess" ),
to = "soils.accdb"
)
# soils.db is now in your working directory.
### Describe the database (NB: this is not a connection)
myDb2 <- edb( dbType = "RODBC_Access", dbName = "soils.accdb",
accessVersion = 2007 )
### Use the database:
# List the tables:
edbNames( myDb2 )
### Clean-up
file.remove( "soils.accdb" )
} #
easyrodbcaccess documentation built on May 2, 2019, 5:26 p.m.
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Description Usage Arguments Value Author(s) See Also Examples
Description
Retrieve table names in a MS Access database (referenced by 'edb').
Usage
1 2 3 4 5 |
Arguments
edb |
An object of class 'edb', such as returned by |
onlyNames |
Single logical. If TRUE only returns the table names (vector), and if FALSE returns a detailed table as in
|
testFiles |
Single logical. Should the function test for the presence (file.exist()) of the needed files in the folder before trying to fetch information from the database? |
... |
Additional parameters to be passed to |
Value
The function returns the list of tables found in the database.
Author(s)
Julien MOEYS <Julien.Moeys@mark.slu.se>
See Also
Examples
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 | library( "easyrodbcaccess" )
# System check. Ingnore this or set 'testODBC' to TRUE
testODBC <- (class(try(odbcDataSources())) != "try-error") & # Check (R)ODBC
(Sys.info()[[ "sysname" ]] == "Windows") & # Only MS Windows
(.Machine$"sizeof.pointer" == 4) # Only 32-bits
### Windows only:
if( testODBC ){
### Make a copy of MS Access example database:
# (a database of soil profile description)
file.copy(
from = system.file( "soils.mdb", package = "easyrodbcaccess" ),
to = "soils.mdb"
)
# soils.db is now in your working directory.
### Describe the database (NB: this is not a connection)
myDb <- edb( dbType = "RODBC_Access", dbName = "soils.mdb" )
### Use the database:
# List the tables:
edbNames( myDb )
### Clean-up
file.remove( "soils.mdb" )
### Access 2007 ---------------------------------------------
file.copy(
from = system.file( "soils.accdb", package = "easyrodbcaccess" ),
to = "soils.accdb"
)
# soils.db is now in your working directory.
### Describe the database (NB: this is not a connection)
myDb2 <- edb( dbType = "RODBC_Access", dbName = "soils.accdb",
accessVersion = 2007 )
### Use the database:
# List the tables:
edbNames( myDb2 )
### Clean-up
file.remove( "soils.accdb" )
} #
|
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