I have an index and I need to find out what is the row in a table with that index, in SQLite. Example: Index = 1 Table: Which is the correct SELECT that I can use to solve my problem? Answer Typically to get a specific row you can always request them by rowid, e.g. However, there are some atypical
Tag: database
ORA-01219: database not open: queries allowed on fixed tables/views only
I Am using oracle 11g and SQL developer tool. When i tried to retrieve rows from db i am getting error message as :- I looked for sgadef.dbf file and it was missing in home directory.. Can someone help me to make it working. Answer First of all check the status of the instance you work with (this may need
Should I create separate SQL Server database for each user?
I am working on Asp.Net MVC web application, back-end is SQL Server 2012. This application will provide billing, accounting, and inventory management. The user will create an account by signup. just …
Grant privileges on future tables in PostgreSQL?
I am running PostgreSQL 9.3.1. I have test database and backup user which is used to backup the database. I have no problems with granting privileges to all current tables, but I have to grant privileges each time the new table is added to schema. Is it possible to grant access to tables which will be created…
Emulating materialized views in PostgreSQL with concurrent refreshes
I’m using PostgreSQL 9.2.4 and would like to emulate a materialized view. Are there any well-known methods for doing this, including concurrent refreshes? Answer PostgreSQL wiki – materialized views links to two trigger-based implementations. The general idea is to put AFTER INSERT OR UPDATE OR DE…
Postgres Error: More than one row returned by a subquery used as an expression
I have two separate databases. I am trying to update a column in one database to the values of a column from the other database: UPDATE customer SET customer_id= (SELECT t1 FROM dblink(‘port=5432, …
Failing update table in db2 with SQLCODE: -668, SQLSTATE: 57016, SQLERRMC: 7;
I am using db2 9.5 i have created a column in table which is created successfully but i am not able to update table column and getting following error [Error] Script lines: 1-1 ————————– DB2 SQL error: SQLCODE: -668, SQLSTATE: 57016, SQLERRMC: 7;DB2ADMIN.X…
JPA with HIBERNATE insert very slow
I am trying to insert some data to SQL Server 2008 R2 by using JAP and HIBERNATE. Everything “works” except for that it’s very slow. To insert 20000 rows, it takes about 45 seconds, while a C# script takes about less than 1 second. Any veteran in this domain can offer some helps? I would app…
SQL max product price [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. This question appears to be off-topic because it lacks sufficient information to diagnose the problem. Describe your problem in more detail or include a minimal example in the question itself. Closed 8 years …
MySQL : ERROR 1215 (HY000): Cannot add foreign key constraint
I have read Database system concepts, 6th edition, Silberschatz. I’m going to implement the university database system shown in chapter 2 on OS X on MySQL. But I have a trouble with creating the table course. the table department looks like Creating the table course causes the following error. after sea…