Hi,
I need to extract the table name from an oracle control file which comes as the last word in the third line.
Ex:
LOAD DATA
INFILE '/home/user/files/scott.dat'
INTO TABLE SCOTT.EMP_SAL
FIELDS TERMINATED BY..........
what i want to to is write the table name SCOTT.EMP_SAL to a... (2 Replies)
Hi all,
i have a list of files that contains some PC hostname, then i need to enumerate every hostname and check if there's a table with same name of the hosts in MySQL database XYZ.
I need this because have to decide automatically if i have to make a create table or a insert into an existent... (2 Replies)
Hi,
Pls check that '|' and '+' present in Step-1 are not copied to log file in Step-3.
Pls suggest how to get the exact output from Step-1 (i.e. with out losing '|' and '+') in to a log file
~Thanks
Step-1: Execute command
> mysql -utest -ptest -htesthost testdb -e "select * from... (3 Replies)
I need to extract the data from oracle table and written the below code.
But it is not working.There is some problem with the query and output is shown is No rows selected" . If I run the same query from sql developer there is my required output.
And if I run the shell script with simple sql... (7 Replies)
I want to extract a table from an HTML file. the table starts with
<table class="tableinfo"
and ends with next closing table tag
</table>
how can I do this with awk/sed...
---------- Post updated at 04:34 PM ---------- Previous update was at 04:28 PM ----------
also I want to... (4 Replies)
Hi All,
I am writing a shell script to extract oracle table into a pipe dilemited flat file. Below is my code and I have attached two files that I have abled to generate so far.
1. Table.txt ==> database extract file
2. flat.txt ==> pipe delimited after some manipulation of the original db... (5 Replies)
I need to sort out table in a file to a format below:
Input:
this is a test
example
Cat Bee Dat
1 2 3
more Example
date
data
Bet Cla Blaa Dat
A 6 T
data..
Output:
this is a test (10 Replies)
Hi,
Below is my code to execute mysql statement , how to save the output to a file ?
#!/usr/bin/bash
#Script to run automated sql queries
#Declaring mysql DB connection
MASTER_DB_USER='root'
MASTER_DB_PASSWD='root'
MASTER_DB_PORT=3306
MASTER_DB_HOST='localhost'... (1 Reply)
I have below 2 requirements for parameterize the generate the extract file from Oracle table using Shell Script. Could you please help me by
modifying the script and show me how to execute it.
First Requirement:
I have a requirement where I need to parameterize to generate one... (0 Replies)
Discussion started by: hareshvikram
0 Replies
LEARN ABOUT REDHAT
reindex
REINDEX(7) SQL Commands REINDEX(7)NAME
REINDEX - rebuild corrupted indexes
SYNOPSIS
REINDEX { TABLE | DATABASE | INDEX } name [ FORCE ]
INPUTS
TABLE Recreate all indexes of a specified table.
DATABASE
Recreate all system indexes of a specified database. (User-table indexes are not included.)
INDEX Recreate a specified index.
name The name of the specific table/database/index to be reindexed. Table and index names may be schema-qualified.
FORCE Force rebuild of system indexes. Without this keyword REINDEX skips system indexes that are not marked invalid. FORCE is irrelevant
for REINDEX INDEX, or when reindexing user indexes.
OUTPUTS
REINDEX
Message returned if the table is successfully reindexed.
DESCRIPTION
REINDEX is used to rebuild corrupted indexes. Although in theory this should never be necessary, in practice indexes may become corrupted
due to software bugs or hardware failures. REINDEX provides a recovery method.
REINDEX also removes certain dead index pages that can't be reclaimed any other way. See the "Routine Reindexing" section in the manual for
more information.
If you suspect corruption of an index on a user table, you can simply rebuild that index, or all indexes on the table, using REINDEX INDEX
or REINDEX TABLE.
Note: Another approach to dealing with a corrupted user-table index is just to drop and recreate it. This may in fact be preferable
if you would like to maintain some semblance of normal operation on the table meanwhile. REINDEX acquires exclusive lock on the ta-
ble, while CREATE INDEX only locks out writes not reads of the table.
Things are more difficult if you need to recover from corruption of an index on a system table. In this case it's important for the backend
doing the recovery to not have used any of the suspect indexes itself. (Indeed, in this sort of scenario you may find that backends are
crashing immediately at start-up, due to reliance on the corrupted indexes.) To recover safely, the postmaster must be shut down and a
stand-alone PostgreSQL backend must be started instead, giving it the command-line options -O and -P (these options allow system table mod-
ifications and prevent use of system indexes, respectively). Then issue REINDEX INDEX, REINDEX TABLE, or REINDEX DATABASE depending on how
much you want to reconstruct. If in doubt, use REINDEX DATABASE FORCE to force reconstruction of all system indexes in the database. Then
quit the standalone backend and restart the postmaster.
Since this is likely the only situation when most people will ever use a standalone backend, some usage notes might be in order:
o Start the backend with a command like
postgres -D $PGDATA -O -P my_database
Provide the correct path to the database area with -D, or make sure that the environment variable PGDATA is set. Also specify the name
of the particular database you want to work in.
o You can issue any SQL command, not only REINDEX.
o Be aware that the standalone backend treats newline as the command entry terminator; there is no intelligence about semicolons, as there
is in psql. To continue a command across multiple lines, you must type backslash just before each newline except the last one. Also, you
won't have any of the conveniences of command-line editing (no command history, for example).
o To quit the backend, type EOF (Control+D, usually).
See the postgres(1) reference page for more information.
USAGE
Recreate the indexes on the table mytable:
REINDEX TABLE mytable;
Rebuild a single index:
REINDEX INDEX my_index;
Rebuild all system indexes (this will only work in a standalone backend):
REINDEX DATABASE my_database FORCE;
COMPATIBILITY
SQL92
There is no REINDEX in SQL92.
SQL - Language Statements 2002-11-22 REINDEX(7)