I'm pretty new to the database world and I've run into a mental block of sorts. I've been unable to find the answer anywhere. Here's my problem: I have several tables and everything is as normalized as possible (as I've been lead to understand normalization.) Normalization has lead to some challenges though. Namely, how do I do an effective INSERT? So, let's say I have tbl_Customers, tbl_Addresses, tbl_States and tbl_Cities. Now if I want to add a new customer, with their own address and everything, I'll have to check tbl_States and tbl_Cities to see if the state and city already exist. If they do then set the FK in tbl_Address with them, otherwise do INSERTS on tbl_States and tbl_Cities. I could do all this in Perl but it's horribly ugly, inefficient and just feels wrong. From what I've read/heard though, I should be able to create a sotred function where I can just CALL AddCustomer(FName, LName, Street, City, State) and it would handle all that in the background. Any suggestions? Obviously the solution will onvolve multiple INSERTs but I know there has to be a better way than what I'm doing. Here's some of what I've come up with so far but without any luck.
Hi!
I would like to do a single connection to sqlplus and execute some querys.
Actually I do for every query one connection to database
i.e
echo 'select STATUS from v$instance;
exit' > $SQL_FILE
sqlplus user/pass@sid @$SQL_FILE > $SELECT_RESULT
echo 'select VERSION from v$instance;... (6 Replies)
Say I have two tables like below..
status
HId sName dName StartTime EndTime
1 E E 9:10 10:10
2 E F 9:15 10:15
3 G H 9:17 10:00
logic
Id devName capacity free Line
1 E 123 34 1
2 E 345 ... (3 Replies)
Hi everyone,
I once again got stuck with merging tables and was wondering if someone could help me out on that problem.
I have a number of tab delimited tables which I need to merge into one big one. All tables have the same header but a different number of rows (this could be changed if... (6 Replies)
I want to check for rows in a table where all values (except the key) is empty. I am using MySQL 5.5.
I plan to do this mechanically, so the approach should work for any table in my database schema.
Suppose for illustration purposes I start with the following table:
CREATE TABLE `sources` (
... (4 Replies)
multiple files to load into different tables,
I have a script show below, but this script loads data from txt file into a table,
but i have multiple input files(xyzload.txt,xyz1load.txt,xyz2load.txt......) in the unix folder ,
can we load these files in diff tables (table 1, table2... (0 Replies)
multiple files to load into different tables,
I have a script show below, but this script loads data from txt file into a table,
but i have multiple input files(xyzload.txt,xyz1load.txt,xyz2load.txt......) in the unix folder ,
can we load these files in diff tables (table 1, table2... (1 Reply)
Hi All,
I want to run multiple sql queries and store the data in variable but i want to use sql command only once. Is there a way without running sql command twice and storing.Please advise.
Eg :
Select 'Query 1 output' from dual;
Select 'Query 2 output' from dual;
I want to... (3 Replies)
Hi,
Please let me know if you have any thoughts on how to read a table that has all the oracle sql files or shell scripts at the job and step level to identify all the tables that does merge, update, delete, insert, create, truncate, alter table (ALTER TABLE XYZ RENAME TO ABC) and call them out... (1 Reply)
Hello All,
just wanted to export multiple tables from oracle sql using unix shell script to csv file and the below code is exporting only the first table.
Can you please suggest why? or any better idea?
export FILE="/abc/autom/file/geo_JOB.csv"
Export= `sqlplus -s dev01/password@dEV3... (16 Replies)
Discussion started by: Hope
16 Replies
LEARN ABOUT DEBIAN
database
database(1grass) Grass User's Manual database(1grass)GRASS GIS 6.4.2 Reference Manual
Geographic Resources Analysis Support System, commonly referred to as GRASS, is a <a href="http://en.wikipedia.org/wiki/Geographic_informa-
tion_system">Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps produc-
tion, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many
governmental agencies and environmental consulting companies.
This reference manual details the use of modules distributed with Geographic Resources Analysis Support System (GRASS), an open source (GNU
GPL'ed), image processing and geographic information system (GIS). Go back to help overview
database commands:
| db.columns | List all columns for a given table.
| db.connect | Prints/sets general DB connection for current mapset and exits.
| db.copy | Copy a table.
| db.describe | Describes a table in detail.
| db.drivers | Lists all database drivers.
| db.dropcol | Drops a column from selected attribute table
| db.droptable | Drops an attribute table.
| db.execute | Executes any SQL statement.
| db.in.ogr | Imports attribute tables in various formats.
| db.login | Sets user/password for driver/database.
| db.out.ogr | Exports attribute tables into various formats.
| db.select | Selects data from attribute table (performs SQL query statement(s)).
| db.tables | Lists all tables for a given database.
| db.test | Test database driver, database must exist and set by db.connect.
Full Index
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GRASS 6.4.2database(1grass)