Recent questions tagged database

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database - MySQL server stored procedure syntax error

I am having some trouble with creating a Stored Procedure for a MySQL database. Here is a Select statement that ... set in the given context See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - Returning a value from an INSERT statement in SQL Server 2008

Database : SQL Server 2008 Is there a way to have an insert statement return a value in SQL Server, There is a ... I want a SQL statement only . See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - how to pass values dynamically in config file

I want to pass the value in the value tag of the property dynamically from the DB. Is this possible in ... the DB and passed here dynamically. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - Mysql Chain Select Query

I have a database with a table which looks somewhat like this : Root | Connector A | B B | C C | ... am using mysql database. Thanks in advance See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - Find the parameter names of a stored procedure

I am using Microsoft SQL Server 2008. I have a stored procedure. Is there a simple query I can execute that ... for Microsoft SQL Server 2008. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - LINQ to SQL for self-referencing tables?

I have a self referencing Categories table. Each Category has a CategoryID, ParentCategoryID, CategoryName, etc. ... Stored Procedure instead? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - Linq to SQL error : An order by expression can only contain non-constant scalars

I'm using a GridView and a LinqDataSource to view the Categories table. I set the Gridview to enable sorting ... not sortable when nvarchar are? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - java jdbc accessing multiple resultsets

I have the following structure: List -->List_Participant -->Participant so a list may contain several participants.I ... have the same name? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - crosstab: Counting the same string in a field and display it as field name

I would like to have a total of specific string in the field, for this example in the PAYROLL_PAYMONTH field. For ... want. What to do next? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - GETUTCDATE() and Time Zone (SQL Server)

I want to add my time zone with the function GETUTCDATE() in SQL Server. I searched several times, but ... relevant solution. Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - How rotate sql result entries into columns (pivot)

I have table a | id | value | comment | |--------------------------| | 1 | Some1 | comm1 ... it for reporting... Is it possible at all? thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - How to fix possible db corruption?

I'm at a client doing some quick fixes to their access application. It was a while I had a go with access ... me in the right direction. Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - PostgreSQL: could not connect to server - Connection refused error

I've failed to set up postgreSQL to work with my Ruby-on-Rails project for the past week. I've tried to ... have any suggestions for me? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - Copy Access table structure and constraints using C# or SQL

Can someone tell me how to copy an MS Access table's table structure and all its constraints, keys, and ... tips would be greatly appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - How to return column that matched the query in Solr..?

I am using apache Solr for searching my database..!! Suppose i have indexed 4 columns from one of my table..!!.. ... How can i acheive this..?? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database design - Cassandra - one big table vs many tables

I'm currently looking trying out Cassandra database. I'm using DataStax Dev center and DataStax C# driver. My ... range query on my MeasureTime? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - anonymous read with amazon simpledb

I would like to query simpledb directly from the client using javascript. My application is read-heavy and ... google) have this functionality? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - Sql query to create a calculated field

I have a database table like this: I hope I can explain this well, so you can understand. I want to ... am working with MS Access Database. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - How display images in datagridview? c#

I am developing an application in C # for desktop using Visual Studio Express 2010. I have a table in MySQL ... , product name, product image } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - Find a table when you know the name of a column?

I have a DB in Access with an incredible amount of tables. Unfortunately, the creator used very non-descriptive names ... -by-one like a monkey? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - Intellij ERROR: No suitable driver found for jdbc:mysql://127.0.0.1:3306/person

first of all I couldn't find an answer from related questions in this forum. I am new to Hibernate ... made through Wampservers' phpmyadmin. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - What is the performance difference in MySQL relational division (IN AND instead of IN OR) implementations?

Because MySQL does not have a built in relational division operator, programmers must implement their own. There ... offer the best performance? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - To improve SQL-queries in DDL

Improvements done nvarchar(5000) -> nvarchar(4000) BUT no nvarchar in PostgreSQL => TEXT memory limits to some ... improve in the DDL queries? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - How to update a single field of all documents in firestore using flutter?

I have a 100 user documents in database, and I have to update one field to 0 in all documents. How do we do it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database design - mongodb index data structures

Does mongodb discriminate between indices constructed of small, statically sized elements (lets say numeric types) ... of discriminated union ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database design - MySQL: Using DATETIME as primary key

My database will be storing a large number of data points, so I am using an unsigned BIGINT as the primary key. ... as the primary key? Thanks, See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - Data modeling question

My clients use one of the following when they sign up for my application: Foo API (requires a "auth_key", " ... ie, better for performance, etc) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - Why does ora_rowscn change without updating a table

I work with ora_rowscn to track the changed rows on a table and to work with updated rows. Last week I noticed that ... get it work or fix it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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