Lab Sql

Related to several other questions on the RODBC package, I'm having problems using RODBC::sqlSa… Read more Rodbc::sqlsave - Problems Creating/appending To A Table

I have a simple MySQL database with some foreign keys on certain table columns. Some of the foreig… Read more Mysql Rejects Column With On Delete Set Null But Not On Delete Cascade

The following query cant execute from java . Here i use oracle xe server datetrx Solution 1: Your … Read more Oracle Compare Two Different Dates

I'm unable to get web2py to connect to mssql. (Failure to connect, tried 5 times: 'NoneTyp… Read more Web2py Won't Connect To Mssql

I have found a way to select random rows from a table in this post. A suggestion is to use the foll… Read more How To Use Limit Keyword In Sql Server 2005?

My App and Sqlite connection works on simulator but does not work when publishes on android device.… Read more Can Sqlite Databae Be Used With As3 Air App For Android Devices Running 6.0+ Versions?

I have a standart model's collection in my project like this one: class Dimension(models.Model)… Read more How To Convert Results Of Model Queries Into Xlsx Using Pandas In Python?

I have the following: DECLARE @SchemaName NVARCHAR(MAX) SET @SchemaName = 'MySchema' DROP … Read more Drop A Schema Using Variable Name

I have a big database which takes time to find needed information. So I decided to use RxJava to ma… Read more How To Run Sqlite Query Asynchronously On Background Thread?

This question is about Postgresql 8.3. I've got a table with a field containing conditions like… Read more If-statement With String Containing The Condition

I need a litle help with expressing in SQLAlchemy language my code like this: SELECT s.agent_id… Read more How To Convert Sql Scalar Subquery To Sqlalchemy Expression

I have table user that has user_id, user_name and user_dob. I want to count how many users that are… Read more Count Number Of User In A Certain Age's Range Base On Date Of Birth

I am using SQL Developer and want to output the contents of a variable to the console using DBMS_OU… Read more Rudimentary Issue: Basic Pl/sql Console Output?

The following query against a SQL Server 2012 database, using Entity Framework Core 3.1: va… Read more Why Does Linq Generated Sql Include Multiple "is Null" Conditions For The Same Column

I have three SQL Server databases on one SQL Server instance. Every time I do query to different da… Read more Php Sql Server Database Select

I have a question Simmilar to this one except I have a table that looks like this: Temp_Date … Read more Get Latest Data From Sql For

I have a huge list of INSERT INTO ... strings. Currently I run them with: using (SqlConnection con… Read more Sending Several Sql Commands In A Single Transaction

I'm trying to set up a Windows slave for our Jenkins server, but some of the unit tests are fai… Read more Python Imports Wrong Version Of Sqlite When Running Tests

I came across a scenario where I have to insert 20 rows into a database (SQLite). The approach I fo… Read more Is There Any Advantage In Using Addbatch() And Executebatch() Over Executing Multiple Queries Sequentially?

I'm wondering if it's possible to move all data from one column in table to another table. … Read more Sql: Move Column Data To Other Table In Same Relation