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How do you create a read-only user in PostgreSQL?
...user in PostgreSQL that can only do SELECTs from a particular database. In MySQL the command would be:
11 Answers
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How to write DataFrame to postgres table?
There is DataFrame.to_sql method, but it works only for mysql, sqlite and oracle databases. I cant pass to this method postgres connection or sqlalchemy engine.
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How can I alter a primary key constraint using SQL syntax?
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ALTER TABLE db.table DROP PRIMARY KEY is for MySQL. (Not MSSQL.)
– Roy Latham
Sep 25 at 16:43
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How to make Sequelize use singular table names
...ames
freezeTableName: true
}
}
var sequelize = new Sequelize('mysql://root:123abc@localhost:3306/mydatabase', opts)
Now when you define your entities, you don't have to specify freezeTableName: true:
var Project = sequelize.define('Project', {
title: Sequelize.STRING,
descrip...
What does SQL clause “GROUP BY 1” mean?
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XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
... wamp? I am running wamp and still receiving this message. Apache, php and mysql are all up-to-date
– user2883071
Dec 24 '14 at 18:52
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Primary key or Unique index?
...hen it tries to insert the value 1 into this column for a second time.
In MySQL a unique constraint allows multiple NULLs.
It is possible to make a unique index on mutiple columns.
Primary key versus unique index
Things that are the same:
A primary key implies a unique index.
Things that are...
SELECT * WHERE NOT EXISTS
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How can I edit a view using phpMyAdmin 3.2.4?
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Not the answer you're looking for? Browse other questions tagged mysql database phpmyadmin or ask your own question.
Fastest way to count exact number of rows in a very large table?
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The fastest way by far on MySQL is:
SHOW TABLE STATUS;
You will instantly get all your tables with the row count (which is the total) along with plenty of extra information if you want.
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