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MySQL check if a table exists without throwing an exception
What is the best way to check if a table exists in MySQL (preferably via PDO in PHP) without throwing an exception. I do not feel like parsing the results of "SHOW TABLES LIKE" et cetera. There must be some sort of boolean query?
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How to change identity column values programmatically?
I have a MS SQL 2005 database with a table Test with column ID . ID is an identity column.
13 Answers
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How to remove all MySQL tables from the command-line without DROP database permissions? [duplicate]
How do I drop all tables in Windows MySQL, using command prompt? The reason I want to do this is that our user has access to the database drops, but no access to re-creating the database itself, for this reason we must drop the tables manually. Is there a way to drop all the tables at once? Bear in ...
How do I check in SQLite whether a table exists?
How do I, reliably , check in SQLite, whether a particular user table exists?
22 Answers
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ERROR 1452: Cannot add or update a child row: a foreign key constraint fails
I have created tables in MySQL Workbench as shown below :
21 Answers
21
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HTML table with 100% width, with vertical scroll inside tbody [duplicate]
How can I set for <table> 100% width and put only inside <tbody> vertical scroll for some height?
13 Answer...
Get all table names of a particular database by SQL query?
...nt sql dbms deal with schemas.
Try the following
For SQL Server:
SELECT TABLE_NAME
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE' AND TABLE_CATALOG='dbName'
For MySQL:
SELECT TABLE_NAME
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE' AND TABLE_SCHEMA='dbName'
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Check if a table exists in Rails
I have a rake task that won't work unless a table exists. I'm working with more than 20 engineers on a website so I want to make sure they have migrated the table before they can do a rake task which will populate that respective table.
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How do I delete from multiple tables using INNER JOIN in SQL server
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You can take advantage of the "deleted" pseudo table in this example. Something like:
begin transaction;
declare @deletedIds table ( id int );
delete from t1
output deleted.id into @deletedIds
from table1 as t1
inner join table2 as t2
on t2.id = t...
Search for one value in any column of any table inside a database
...e (in my case it is a UID of the type char(64) ) inside any column of any table inside one MS SQL Server database?
7 Answe...