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by: Beyonder |
last post by:
I have five tables in my database, there are actually NO common fields
between them, not even a KEY or ID or anything like that, except for
the "body" of a blob field. and that text is not identical, just a
portion of that text is identical.
each table has 5 fields, all different except the blob, which is
called "message", so normally I use something like:
select * from table1 where message like '%apple%';
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by: jayson_13 |
last post by:
Hi,
I need to implement a counter and i face problem of locking so hope
that u guys can help me.
I try to do test like this :
1st connection
SELECT * FROM nextkey WHERE tblname = 'PLCN' FOR Update;
(when i execute this statement and i guess that this will lock the
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by: Matt Jensen |
last post by:
Howdy
Fairly simple question I think, I presume the answer is no it can't be
reused for 2 *SELECT* statements, but just hoping for clarification. Just
asking in the interests of trying to minimise code.
i.e. if the SqlDataAdapter uses a connection to the one database for a
select statement and I want to do a second select statement on exactly the
same database, can I reuse the SqlDataAdapter?
I ask because I want to put both 'select'...
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by: abc my vclass |
last post by:
I want to write a form control to lookup some tables fields from
database,
let users to select one record (or multi-select more records) under
win-form
environment for fill some fields of parent forms. Is datagrid control
support multi-select features? Is datagrid control support paging
feature to
access tables (because some tables has more than 100000 records!!)?
Has any
best ideas?
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by: Grant McLean |
last post by:
Hi
First a simple question ...
I have a table "access_log" that has foreign keys "app_id" and
"app_user_id" that reference the "application_type" and "app_user"
tables. When I insert into "access_log", the referential integrity
triggers generate these queries:
SELECT 1 FROM ONLY "public"."application_type" x
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by: Shwetabh |
last post by:
Hi,
I have two tables: Code and Color.
The create command for them is :
create table Color(
Partnum varchar(10),
Eng_Color char(10),
Span_Color char(20),
Frch_Color char(20),
CONSTRAINT pkPartnum PRIMARY KEY(Partnum)
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by: Peter |
last post by:
People are telling me it is bad to put
select * from <atable>
in a view. I better should list all fields of the table inside the
definition of the view.
I dont know exactly why but some say:
A select * from makes sql server does a table scan.
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by: andro |
last post by:
Hi everybody!
I have several tables from which I want to exract the SAME value (along with
other referenced data).
All the values are in the same column within the tables.
How can I achieve this?
TIA.
Andro
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by: rallykarro |
last post by:
Hi,
How do I at the best way perform select statements over multiple
databases?
I have a couple of databases containing the same table definitions with
diffrent data. Now I want them to act as a single database giving me
one answer on a select statement but the answer fetched from all my
defined databases.
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by: Nikhil |
last post by:
I am using the MySQLdb python module. I have a table named 'testing'
with few columns, under the 'test' database, what is hosted on a remote
mysql server.
I want to run the following query to get a comma-seperated information
from the table
LOCK TABLES foo READ;
SELECT a,b,a+b INTO OUTFILE '/tmp/result.txt'
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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