I have q tricky question when joining 3 tables in Teradata DB.In the last line of my query , I am comparing one condition with C an B tables and its creating performance issue in returning the data . Basically I want to eliminate OR clause and try other approach.Is there any logic to satisfy this condition . Thanks in advance
Last edited by Scrutinizer; 12-09-2015 at 02:25 PM..
Reason: code tags
I am trying to transpose tables listed in the format into format. Any help would be greatly appreciated.
Input:
test_data_1
1 2 90%
4 3 91%
5 4 90%
6 5 90%
9 6 90%
test_data_2
3 5 92%
5 4 92%
7 3 93%
9 2 92%
1 1 92%
...
Output:... (7 Replies)
hi,
pls could you help me with one program in KSH ( i have sunOS).
I need to create an If clause, that prints an error message and filenames, when in a directory are found some files of null size (find . -type f -size 0 ).
thanks (3 Replies)
Hi,
I have an app which user can query the database based on 4 criteria, that is Field1, Field2, Field3 and Field4
Mya I know how to write a dynamic SQL where I can choose to retrieve data based on their selected value.
eg. where Field1=AAA
eg. where Field1=AAA and Field2=BBB
eg.... (1 Reply)
Hi,
When i use the below code snippet in my shell script OFC_10.sh:
if
then
echo "Success"
exit 2
elif
then
echo "Failure"
exit 6
I get the error message:
./OFC_10.sh: line 41: '
./OFC_10.sh: line 45: '
Line 41 is the line where If loop starts and line 45 is... (2 Replies)
Hi,
I am trying to create a text file from data retrieved from a query.The data retrieved is having this character '^L' at regular intervals of the data.
How can i eliminate this, Please find below the sample data.
I tried sed -e "s/\^L//g" to convert it, but with no luck
^LCODE*SERIAL... (11 Replies)
Hi all,
I want to use a variable inside my sql query and below is my script:
#!/bin/ksh
export b="abcd"
a=`sqlplus -s abc/def@ghi <<++
set heading off;
set feedback off;
select xxx from mytable where clmn_nm='$b';
exit;
++`
echo $a
But the output i get is below:
$>... (4 Replies)
HI friends ,
I am very new to perl .please dont mind if i ask silly questions.
I seee below code in one sript
if ( exists $ENV{FMTWRP_TMP_DIR} and $ENV{FMTWRP_TMP_DIR} ) {
$tdir = $ENV{FMTWRP_TMP_DIR};
}
whats does this mean .
I am very confused about the if clauses in... (1 Reply)
Hi
can anyone please explain what the below code does?
i mean $fide_stopfile = ?
when $FIDE_SCR = '/fs/dir1/dir2/common/scr'
and also little confused with if clause too.
what it check?
$fide_stopfile = "$ENV{FIDE_SCR}/../tmp/STOP";
if ( -e $fide_stopfile > 0 ) {
... (3 Replies)
Hello All,
I want to do a conditional search for a directory, i.e
pathname=/abc/def
foldername=xyz
if ( $pathname/$foldername/aaa )
then
..................
fi
Here i am searching for aaa directory inside the path and if it exist then it should go inside the loop.
Can... (1 Reply)
Hi,
i need to add a condition in my IF clause where i need to check if the file exists in a folder and return true out of it. but in my directory i have multiple files with same name but datestamp append on it for e.g.
export f1 = filename
export f2=filename1
if ]
then
echo "No... (9 Replies)
Discussion started by: rohit_shinez
9 Replies
LEARN ABOUT REDHAT
update
UPDATE(7) SQL Commands UPDATE(7)NAME
UPDATE - update rows of a table
SYNOPSIS
UPDATE [ ONLY ] table SET col = expression [, ...]
[ FROM fromlist ]
[ WHERE condition ]
INPUTS
table The name (optionally schema-qualified) of an existing table. If ONLY is specified, only that table is updated. If ONLY is not speci-
fied, the table and all its descendant tables (if any) are updated. * can be appended to the table name to indicate that descendant
tables are to be scanned, but in the current version, this is the default behavior. (In releases before 7.1, ONLY was the default
behavior.) The default can be altered by changing the SQL_INHERITANCE configuration option.
column The name of a column in table.
expression
A valid expression or value to assign to column.
fromlist
A PostgreSQL non-standard extension to allow columns from other tables to appear in the WHERE condition.
condition
Refer to the SELECT statement for a further description of the WHERE clause.
OUTPUTS
UPDATE #
Message returned if successful. The # means the number of rows updated. If # is 0 no rows are updated.
DESCRIPTION
UPDATE changes the values of the columns specified for all rows which satisfy condition. Only the columns to be modified need appear as
columns in the statement.
Array references use the same syntax found in SELECT [select(7)]. That is, either single array elements, a range of array elements or the
entire array may be replaced with a single query.
You must have write access to the table in order to modify it, as well as read access to any table whose values are mentioned in the WHERE
condition.
By default UPDATE will update tuples in the table specified and all its sub-tables. If you wish to only update the specific table men-
tioned, you should use the ONLY clause.
USAGE
Change word Drama with Dramatic on column kind:
UPDATE films
SET kind = 'Dramatic'
WHERE kind = 'Drama';
SELECT *
FROM films
WHERE kind = 'Dramatic' OR kind = 'Drama';
code | title | did | date_prod | kind | len
-------+---------------+-----+------------+----------+-------
BL101 | The Third Man | 101 | 1949-12-23 | Dramatic | 01:44
P_302 | Becket | 103 | 1964-02-03 | Dramatic | 02:28
M_401 | War and Peace | 104 | 1967-02-12 | Dramatic | 05:57
T_601 | Yojimbo | 106 | 1961-06-16 | Dramatic | 01:50
DA101 | Das Boot | 110 | 1981-11-11 | Dramatic | 02:29
COMPATIBILITY
SQL92
SQL92 defines a different syntax for the positioned UPDATE statement:
UPDATE table SET column = expression [, ...]
WHERE CURRENT OF cursor
where cursor identifies an open cursor.
SQL - Language Statements 2002-11-22 UPDATE(7)