Recent questions tagged SQL

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sql server - Can we pass parameters to a view in SQL?

Can we pass a parameter to a view in Microsoft SQL Server? I tried to create view in the following way, but ... * from emp where emp_id=&eno; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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220 views

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sql - Best way to delete millions of rows by ID

I need to delete about 2 million rows from my PG database. I have a list of IDs that I need to delete. ... , and there are millions of IDs. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - How can I select from list of values in Oracle

I am referring to this stackoverflow answer: How can I select from list of values in SQL Server How could something ... BY LEVEL<=6) A ; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Django select only rows with duplicate field values

suppose we have a model in django defined as follows: class Literal: name = models.CharField(...) ... Name ... ORM? Or better SQL solution? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Why can't I use alias in a count(*) "column" and reference it in a having clause?

I was wondering why can't I use alias in a count(*) and reference it in the having clause. For instance: ... _count and use count(*) instead. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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263 views

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sql - Difference between SET autocommit=1 and START TRANSACTION in mysql (Have I missed something?)

I am reading up on transactions in MySQL and am not sure whether I have grasped something specific correctly, and ... autocommit, what is it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Fastest way to determine if record exists

As the title suggests... I'm trying to figure out the fastest way with the least overhead to determine if a ... via the M$ provided JDBC driver) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Extract date (yyyy/mm/dd) from a timestamp in PostgreSQL

I want to extract just the date part from a timestamp in PostgreSQL. I need it to be a postgresql DATE ... ) from a timestamp in PostgreSQL? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - How do I interpret precision and scale of a number in a database?

I have the following column specified in a database: decimal(5,2) How does one interpret this? ... stackoverflow for future reference. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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358 views

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sql server - Query to list all stored procedures

What query can return the names of all the stored procedures in a SQL Server database If the query could exclude ... would be even more helpful. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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263 views

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sql server - The SQL OVER() clause - when and why is it useful?

USE AdventureWorks2008R2; GO SELECT SalesOrderID, ProductID, OrderQty ,SUM(OrderQty) OVER(PARTITION BY SalesOrderID) ... Group By SalesOrderID? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql server - How do you import a large MS SQL .sql file?

I use RedGate SQL data compare and generated a .sql file, so I could run it on my local machine. But the ... contains data for two new tables. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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229 views

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sql - Why do you create a View in a database?

When and Why does some one decide that they need to create a View in their database? Why not just run a normal stored procedure or select? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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355 views

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sql server - How do I find a stored procedure containing <text>?

I need to search a SQL server 2008 for stored procedures containing where maybe the name of a database field or variable name. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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244 views

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sql server - how to make your data horizontal

i have 2 identical data in 2 row and i intend to make this data become 1 row. for example i have this ... Bank sorry i cant explain it properly See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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288 views

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sql - Pivoting in DB2

I have to transpose my rows into columns from a DB2 table.This is how my table is structured.. ItemID Item ... query, can you please help? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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295 views

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sql - How to scale Pivoting in BigQuery?

Let's say, I have music video play stats table mydataset.stats for a given day (3B rows, 1M users, 6K ... approach be scaled for my example? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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275 views

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sql - Search all columns of a table using a single where condition with single keyword in mysql

I have a table which consists of 64 different fields. i am going to search with a single keyword in it, ... any field. Give some suggestions. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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300 views

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sql - MySQL combine two columns into one column

I'm trying to find a way to combine two columns into one, but keep getting the value '0' in the column instead ... me know what I'm doing wrong? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Why does a LIKE query in Access not return any records?

Is there any reason why SELECT * FROM MyTable WHERE [_Items] LIKE '*SPI*' does not return any records ... MyTable all records are returned. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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238 views

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sql - Split given string and prepare case statement

Table: table_name create table table_name ( given_dates timestamp, set_name varchar ); Insertion of records: insert ... Microsoft SQL Server. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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218 views

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sql - Oracle Dynamic Pivoting

I have the below table. I need to create columns based off the column CCL. The values in column CCL are unknown. I'm ... Terry Rob 1 x x x 2 x See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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258 views

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sql - Select (retrieve) all records from multiple schemas using Postgres

I have a PostgreSQL database with some schemas, like below: My_Database |-> Schemas |-> AccountA |-> AccountB |-> ... or how many of them exist. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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290 views

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sql - Creating temporary database that works across maven test phases?

I've joined a project that has a lot of files with SQL statements for creating a database that is used ... create the database from scripts. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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389 views

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sql - Oracle 11g - Check constraint with RegEx

I'm using Oracle 11g, and trying to create a table define constraints on the creation. I was trying to add check ... why, if a reason there is! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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221 views

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sql - SELECT from table with Varying IN list in WHERE clause

I am facing a issue in project I am working on, I can not give you actual code but I have created a ... but not able to figure it out. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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223 views

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sql - Find the real column name of an alias used in a view?

Suppose I have a view in which some of the column names are aliases, like "surName" in this example: CREATE ... ", but in different tables. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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249 views

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sql - MySQL UPDATE syntax with multiple tables using WHERE clause

Case: How to update table1 with data from table2 where id is equal? Problem: When I run the following update ... =table1.id Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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