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How do you create a read-only user in PostgreSQL?
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Grant usage/select to a single table
If you only grant CONNECT to a database, the user can connect but has no other privileges. You have to grant USAGE on namespaces (schemas) and SELECT on tables and views individually like so:
GRANT CONNECT ON DATABASE...
Reset AutoIncrement in SQL Server after Delete
I've deleted some records from a table in a SQL Server database. Now the ID's go from 101 to 1200. I want to delete the records again, but I want the ID's to go back to 102. Is there a way to do this in SQL Server?
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ManyRelatedManager object is not iterable
...}
{% empty %}
empty list!
{% endfor %}
UPDATE
If you have a through table, you can access the elements in that table (as detailed here) like so (note, you use the through table name, in lowercase, suffixing _set):
{% for roominfo in participant.roomchoicethru_set.all %}
{{ roominfo.room}} ...
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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SQL query return data from multiple tables
...t 1 - Joins and Unions
This answer covers:
Part 1
Joining two or more tables using an inner join (See the wikipedia entry for additional info)
How to use a union query
Left and Right Outer Joins (this stackOverflow answer is excellent to describe types of joins)
Intersect queries (and how to re...
How to fetch the row count for all tables in a SQL SERVER database [duplicate]
...n be used to determine if there is any data (i.e. row count) in any of the tables of a given database.
13 Answers
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IntelliJ gives Fatal Error: Unable to find package java.lang in classpath or bootclasspath
...llowing this answer,
I learned that %LOCALAPPDATA%/IDEA/config/options/jdk.table.xml contained incorrect entries. Fixing the JDK table fixed the problem.
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Search All Fields In All Tables For A Specific Value (Oracle)
Is it possible to search every field of every table for a particular value in Oracle?
16 Answers
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Search an Oracle database for tables with specific column names?
We have a large Oracle database with many tables. Is there a way I can query or search to find if there are any tables with certain column names?
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What should main() return in C and C++?
...LURE and EXIT_SUCCESS from <stdlib.h> if you prefer, but 0 is well established, and so is 1. See also Exit codes greater than 255 — possible?.
In C89 (and hence in Microsoft C), there is no statement about what happens if the main() function returns but does not specify a return value; it t...