[C language library function source code]
[This program is compiled in Dev C ++ 4.9.9.2]
Double my_exp (Double X)
{
Register double ret, value;
_ ASM __(
"Fldl2e ;"
"Fmul % ST (1 );"
"FST % ST (1);/n/t"
"Frndint ;"
"Fxch;/n/t"
"Fsub % ST (1
EXPIMP is a good migration tool for databases with small data volumes. The data migration process is as follows, which involves two major steps: export and import.
EXP/IMP is a good migration tool for databases with small data volumes. The data
1. Export the database test completely, and the username System Password Manager is exported to D: \ daochu. dmp.
Exp system/manager @ test file = D: \ daochu. dmp full = y
2. Export the tables of system users and SYS users in the database
When Oracle 11g is exported using EXP, empty tables cannot be exported, and 11 gexp
I. cause:There is a new feature in 11G. When the table has no data, no segment is allocated to save space.1. insert a row and then roll back to generate a
The difference of function between Exp/imp and EXPDP/IMPDP: 1, the user UserA to import the object into the UserBEmp/imp usage:Formuser=usera Touser=userb;EMPDP/IMPDP usage:Remap_schema= ' UserA ': ' UserB 'For example:Imp system/password
Introduction of EXP
function function: Returns the n power of E. The constant e equals 2.71828182845904 and is the base of the natural logarithm.
function syntax
EXP (number)
Parameter description
Number is the exponent of base e.
Add that to
It's okay, Lao-Lao It 2016-12-04 00:02
Introduction: Oracle, in addition to the EXP command can be a general entire library, the entire user export, but also by increasing the relevant parameter conditions to achieve partial library table or data
In peacetime to do backup of Oracle is usually to do a logical hot backup, and do a logical hot backup is generally used Exp/imp, here is simple to say.Export Data using EXP IMP import data operation as follows:Exp Username/password owner=backup
Oracle Data Import and Export imp/exp sp2-0734: Unknown command starting with 'Imp... worksp2-0734 und: Unknown command starting with 'Imp ignored the remaining line default classification www.2cto.com should be executed at the cmd doscommand prompt,
The SH. COUNTRIES table is required for the 4 sub-questions in session4. When a user creates a database manually, the sh user wants to copy the table from another place without this table. Database of the original exported table:
Because the company does not have Oracle11g, and has never used this version before, some new features are not very familiar. This time, the export of the database of 11 GB encountered exp cannot be exported
Since the company does not have Oracle 11
In Oracle11g, exp cannot export empty tables by default. Using traditional exp, imp Migration to heterogeneous platform databases is troublesome. However, you can use expdp and impdp for migration.
In Oracle 11g, exp cannot export empty tables by
The Oracle password contains special characters, such as rdquo; @ ldquo;, which are written in imp and exp.
The Oracle password contains special characters, such as rdquo; @ ldquo;, which are written in imp and exp.
The Oracle password
I am running Oracle 9.2.0.4 on solaris8. I am exporting all and is getting the following error message.
# Su-Oracle$ Exp system/manager file = oracle_1127_clear.dmp full = y indexes = Y consistent = y log = oracle_1127_clear.log
Export: Release 9.2.0
Command details:E:/> exp help = yBy entering the exp command and user name/password, you canCommand after user/password:Example: EXP Scott/TigerAlternatively, you can control the running mode of "Export" by entering the exp command with various
Function: Oracle Data Import/Export imp/exp is equivalent to Oracle data restoration and backup. In most cases, you can use ORACLE data import and export to back up and restore data (without causing data loss ).
Oracle has a benefit. Although
Exp/imp environment variable character set Conversion
Note: ensure that the client encoding is the same as the database encoding to avoid character conversion.
Other methods ensure that the exp client encoding is the same as the imp client
Importing and exporting Oracle Data imp/exp is equivalent to restoring and backing up ORACLE data. The exp command can export data from the remote database server to the local DMP file, and the IMP command can import the DMP file from the local to
In useExpExport ToolBackupOr sometimes when migrating data will report a lot of "EXP-00091: Exporting questionable statistics" error, the specific phenomenon and solution please watch ......1. symptom[Oracle @ rh207 exp] $ exp test/test file = test.
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