Questions for sql

6806

disable explain in Rails 3.2

4703

Connect to SQL database inside Script Task in SSIS

6454

How can I automatically test my site for SQL injection attacks, using either a script or program?

8487

How to get list of all tables that has identity columns

4947

Designing a SQL schema for a combination of many-to-many relationship (variations of products)

7194

Rails Nested Joins Activerecord with conditions

9789

C# SQL Server - Passing a list to a stored procedure

1893

Finding a Top Level Parent in SQL

2950

SQLAlchemy and empty IN clause

207

The backend version is not supported to design database diagrams or tables

2569

Using IF statement to check if temporary table has rows in a stored procedure

5560

How to check if an array is empty in Postgres

5630

MySQL Workbench: How to keep the connection alive

7478

Database query time complexity

186

Double colon (::) notation in SQL

6395

JPA- Joining two tables in non-entity class

1704

What is SRID 0 for geometry columns?

5580

what is numeric(18, 0) in sql server 2008 r2

3747

How do I batch sql statements with package database.sql

7126

Why sequences are not updated when COPY is performed in PostgreSQL?

9878

Inserting records into a MySQL table using Java

4410

How to get the trigger(s) associated with a view or a table in PostgreSQL

8967

Check if row exists, Laravel

2288

What is the diffrence beetween Days and TotalDays?

6145

Go postgresql LIKE query

5643

Local sequence cannot be used in LINQ to SQL implementation of query operators except the Contains() operator

5946

Selecting multiple columns with linq query and lambda expression

6130

Rails 4 Accessing Join Table Attributes

2224

What is the max size of VARCHAR2 in PL/SQL and SQL?

4743

Laravel concat in query (where condition)

4691

Oracle DB : java.sql.SQLException: Closed Connection

144

Oracle SQL - Sum and group data by week

6746

There is insufficient system memory in resource pool 'default' to run this query. on sql

5820

Could not drop object 'dbo.Table1' because it is referenced by a FOREIGN KEY constraint

9214

PostgreSQL Update trigger

7739

SQL Server query - Selecting COUNT(*) with DISTINCT

2745

When to use GROUPING SETS, CUBE and ROLLUP

6792

How to configure MySQL 5.6 LONGBLOB for large binary data

8008

What does App=EntityFramework do in Sql connection string?

1254

mysql group_concat not bringing entire data

7137

select column as true / false if id is exists in another table

3006

Renaming Columns in an SQL SELECT Statement

881

How do I execute a stored procedure in a SQL Agent job?

4395

ORA-06502: PL/SQL: numeric or value error: character string buffer too small

7834

How to allow only one row for a table?

1423

How to add additional column to Django QuerySet

5617

Infinite loop in CTE when parsing self-referencing table

8330

Using SELECT inside COALESCE

8818

SQL Update if parameter is not null or empty

2474

MySQL efficiently copy all records from one table to another

1029

What value could I insert into a bit type column?

9197

SPARK SQL - case when then

5465

ORA-01741: illegal zero-length identifier

6859

How can I send email from PostgreSQL trigger?

3464

How can I set the default value of a field as '0000-00-00 00:00:00'?

2495

if condition in sql server update query

5735

ORA-01652: unable to extend temp segment by 128 in tablespace SYSTEM: How to extend?

4265

How can you tell if a value is not numeric in Oracle?

2442

Explode (transpose?) multiple columns in Spark SQL table

9304

CASE WHEN NULL makes wrong result in SQLite?

1348

How to build a sparkSession in Spark 2.0 using pyspark?

3759

Select the minimum value for each row join by another table

9668

SQL: Two select statements in one query

8206

Map string to guid with Dapper

5515

Dynamic pivot in oracle sql

2525

Best user role permissions database design practice?

8814

How to change the column length of a primary key in SQL Server?

9809

How to use prepared statement for select query in Java?

8263

How to read the contents of an .sql file into an R script to run a query?

2446

How to select all the columns of a table except one column?

3749

Execute SQL command in Entity Framework Core 2.0 to delete all data in a table

4911

SQL, How to Concatenate results?

7572

REPEAT function equivalent in Oracle

2592

"Order By" using a parameter for the column name

9989

How to prevent SQL Injection with JPA and Hibernate?

6972

Update values from one column in same table to another in SQL Server

3629

Function sequence error in PYODBC

4671

Fatal error: Call to undefined function sqlsrv_connect() in C:\xampp\htdocs

4454

SQL Server Convert integer to binary string

4821

Group by two columns and display grand total in every row

126

Oracle equivalent to SQL Server DATEPART

7615

query to get the difference between total number of rows and distinct rows

7311

How do you catch exceptions with "using" in C#

9749

How to retrieve rows that begin and end with specific characters?

3813

SQL SELECT everything after a certain character

5494

How can I solve ORA-00911: invalid character error?

4678

Split string and take last element

9886

Oracle SQL pivot query

2455

How to get a view table query (code) in SQL Server 2008 Management Studio

6819

How to change the default collation of a table?

2103

How do I add a custom CHECK constraint on a MySQL table?

8480

Printing integer variable and string on same line in SQL

4450

Left join with condition

8704

Update query using Subquery in Sql Server

9906

PostgreSQL: Create an index to quickly distinguish NULL from non-NULL values

3478

"This database file is not compatible with the current instance of SQL Server"

3337

Query to get only numbers from a string

2674

How to select a row based on its row number?

8880

Syntax of for-loop in SQL Server

5408

What column data type should I use for storing large amounts of text or html

2608

How to correctly do upsert in postgres 9.5

5807

Splitting a comma-separated field in Postgresql and doing a UNION ALL on all the resulting tables

166

Postgresql column reference "id" is ambiguous

6471

When is a timestamp (auto) updated?

8725

How do I add a auto_increment primary key in SQL Server database?

6118

how to convert numeric to nvarchar in sql command

1725

Remove constraints in sequelize migration

2973

What does SQL clause "GROUP BY 1" mean?

6869

How do I group on continuous ranges

6492

Delete row from table where match exists in second table

8866

Both left and right aliases encountered in Hive JOIN; without any inequality clause

1164

php mysqli prepared statement LIKE

9810

Why would I want .union over .unionAll in Spark for SchemaRDDs?

7620

SQL - How to Return rows from left table not found in right table?

9277

SQL Server Script to create a new user

3732

SQL count consecutive days

6447

MySQL - SELECT AS in WHERE

9919

Why are my tables not showing up in SQL Server Management Studio's intellisense?

4493

IN Clause with NULL or IS NULL

121

join comma delimited data column

7846

SQL unique varchar case sensitivity question

8927

How to use an user variables in MySQL LIKE clause?

7454

SQL use CASE statement in WHERE IN clause

1544

Make DbDataReader start reading again from the beginning of the result set

443

Hadoop/Hive : Loading data from .csv on a local machine

5268

use current date as default value for a column

560

Raise an error manually in T-SQL to jump to BEGIN CATCH block

8868

SQLite Current Timestamp with Milliseconds?

2686

Codeigniter $this->db->get(), how do I return values for a specific row?

6611

The text, ntext, and image data > types cannot be compared or sorted, except when using IS NULL or LIKE > operator

3734

MySQL Views - When to use & when not to

1054

Difference between SqlDataReader.Read and SqlDataReader.NextResult

5791

How to insert one column into other column within the same table in SQL Server

9046

sqlite insert into table select * from

2313

Why don't DBMS's support ASSERTION

4318

Getting output from dbms_output.get_lines using JDBC

7549

How to select date and time without the seconds in mysql?

940

How can I determine if a Sequence exist in SQL Server 2012?

1124

Selecting COUNT from different criteria on a table

7695

Database design for a recursive relationship

3868

SQL: Returning the most common value for each person

1805

Delete all but one duplicate record

3117

Is having an 'OR' in an INNER JOIN condition a bad idea?

5963

Decimal(3,2) values in MySQL are always 9.99

7952

Rename a constraint in SQL Server?

1038

Repeat Rows N Times According to Column Value

8670

DB2 Comma Separated Output by Groups

6829

Adding multiple columns in MySQL with one statement

9426

DataSet or Entity Data Model

6273

Manually specify starting value for Row_Number()

7031

Faster sqlite 3 query in go? I need to process 1million+ rows as fast as possible

3418

SQL How to replace values of select return?

8181

Cannot resolve table name close to

8858

"Not supported for DML operations" with simple UPDATE query

7561

Searching an int column on the basis of a string value

3681

Duration of data in a Global Temporary table?

8353

MS SQL "ON DELETE CASCADE" multiple foreign keys pointing to the same table?

8622

How to avoid DIVIDE BY ZERO error in an SQL query

6127

Optimizing SELECT COUNT to EXISTS

3556

Filtering by window function result in Postgresql

5657

Streaming VARBINARY data from SQL Server in C#

2856

How to get SQL result saved into a C# variable?

386

SQL Server: Computed Column defintions retrievable from Database?

358

Difference between SQL and LDAP

2857

SQL Query for Grouping the results based on sequence

7911

SQL join format - nested inner joins

5373

MySQL replace all whitespaces with -

863

Designing 1:1 and 1:m relationships in SQL Server

5407

SQL startswith (using `LIKE`) on an expression

5059

Add a column if it doesn't exist to all tables?

6183

MySQL join many to many single row

5606

How to implement a SQL like 'LIKE' operator in java?

8895

What is better in MYSQL count(*) or count(1)?

6797

Efficient way to ensure unique rows in SQLite3

6252

read/write unicode data in MySql

6140

Split varchar into separate columns in Oracle

5910

What is causing Foreign Key Mismatch error?

1590

How to replace single-quote with double-quote in sql query - oracle 10g?

3591

How to backup Sql Server to sql file?

9404

Measuring Query Performance : "Execution Plan Query Cost" vs "Time Taken"

6598

Joining tables with LIKE (SQL)

3731

mdf file cannot be overwritten when restoring a database in SQL Server

9442

Conversion failed when converting from a character string to uniqueidentifier

6413

SQL Server Management Studio 2008 Runas user on different domain over VPN

9579

How can I treat a UNION query as a sub query

416

Rails query through association limited to most recent record?

2872

PHP: Update multiple MySQL fields in single query

6932

SQLServer - Select bool if column begins with a string

1584

Selecting all items in one table and join with another table, allowing nulls

8631

SQL DateDifference in a where clause

5965

Microsoft SQL Browser Client

8927

MySQL LEFT JOIN with optional value in second table

4812

Combining two fields in SELECT statement

7567

UNION the results of multiple stored procedures

2137

How to copy a huge table data into another table in SQL Server

1111

SQL select & group by a period of time (timestamp)

1519

Find sql records containing similar strings

2858

NOT DEFERRABLE versus DEFERRABLE INITIALLY IMMEDIATE

3205

how to use sql server time data type in .net application?

140

Determine Oracle null == null

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