Specifies the type of data being stored (string, date, numeric, etc).

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5answers
355 views

What is the advantage of partition Date field into individual Year(int), Month(int), Day(int), Time(time) columns? [closed]

What is the advantage of partition Date field into individual Year(int), Month(int), Day(int), Time(time) columns? My manager said this is well known practice and query performance is good. Is this ...
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1answer
1k views

What datatypes can cause “String or binary data would be truncated”?

What kind of datatypes can cause the "String or binary data would be truncated" error? Varchars and other strings are obvious, but what about the "binary data"? Can this include integers or datetimes? ...
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3answers
328 views

Help me to map Column types betwenn SQL and TopSpeed Clarion Tables

I am tasked to convert an old Clarion App to new one under SQL Server 2012. All I have is 200 tables with TPS extension which I can open only by program called TopScan. (No odbc, no technical ...
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1answer
330 views

PostgreSQL SELECT primary key as “serial” or “bigserial”

I've meshed together a way to determine what the data_type is as in the data_type you use in the syntax when creating a new table based off of the PostgreSQL wiki page. If there is something wrong ...
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1answer
1k views

Standard data types for email address, telephone number , first name, rixh text editor, etc

I want to build a database for our system using Sql Server 2008 R2. but i need to know what are the best data types for storing these info:- Email address Telephone number with extension, such as ...
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1answer
424 views

PostgreSQL 9.2 number of days in a tstzrange?

How can the number of days contained within a range be found? For example, with these timestamp ranges, get these (integer) number of days: tstzrange('2013-10-01 07:00', '2013-10-01 07:15') | 1 ...
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2answers
780 views

Join on different types

In a database I have two tables: The first has a field named taxonomy_id that is an integer The latter has a field named ID that is a character varying The two tables are related: if it exists a ...
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1answer
624 views

Storing more than 8000 bytes in a column [closed]

I have a column in one of the tables in my SQL Server database that can have more than 8000 characters. As the maximum allowed character length for a column in SQL Server is 8000, how can I store the ...
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1answer
807 views

How can I restore the sql_variant_property of baseType back to a table variable in SQL Server

Ok, I know the title is confusing but here it goes. BTW I am using SQL Server 2008 I have a table that I am trying to use as a storage container. It has 3 columns: reportID integer, dataLabel ...
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1answer
689 views

Rounding of SMALLMONEY Data Type in SQL Server 2005

I'm on SQL Server 2005, and I am trying to figure out a rounding issue with smallmoney data types. For example, the value 1.2849, when rounded to 2 decimal places, produces 1.28, but shouldn't it ...
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1answer
524 views

Storing latitude and longitude

I know there are similar questions on here that have been answered but unfortunately none of them work for me. I am hacking my way through creating a page which will display multiple locations on a ...
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1answer
145 views

PostgeSQL 9.3: What is the difference between text and pg_catalog.text?

I have a classic 3-environments setting (dev, staging and production), each with its own RDS PostgreSQL 9.3. The client/server versions are psql (9.3.5, server 9.3.3). In order to keep the schemas ...
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1answer
175 views

Alternatives to NULL for missing data [duplicate]

I am using PostgreSQL and trying to write value constraints. Is it possible to record missing data as distinct from NULL values in a numeric field without using an arbitrary numeric value? For many ...
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1answer
208 views

Function quote_nullable(timestamp without time zone) is not unique

When I run this query on "enterprisedb 9.2", it raises an error: select quote_nullable(to_date('09-02-2014 ','dd-MM-yyyy'))::date; Error: LINE 1: select quote_nullable(to_date('09-02-2014 ...
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2answers
1k views

boolean purpose column char(0) or tinyint(1)

For Boolean purpose column which one is better: nullable char(0) or tinyint(1). I know bool is an alias for tinyint(1) , but in "High Performance MySQL" book that published by O'reilly said: "If ...
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3answers
135 views

Is there such thing as automatic ENUMs?

There are some tables that I manage which contain a string value (for example, a 4 word "Type" field). There are only a few DISTINCT strings, however the application may insert new strings that have ...
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1answer
1k views

How can I alter the type of a money-column to decimal in PostgreSQL?

I have a table in PostgreSQL where one column "vat" has type money but I would like to alter it to decimal instead. How can I do it? I tried with: alter table my_table alter column vat type ...
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1answer
1k views

MongoDB Keys and casting between types

This is more of a theoretical question: Let's say I have a collection of documents, my_collection: { "_id": ObjectId("52c679ac7a23e6225b62c51f"), "date": ISODate("2014-01-06T03:48:30.737Z") ...
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1answer
6k views

Table schema column data type equivalents for Netezza 6 to SQL Server 2008

I'm trying to find a data type equivalents for data types in Netezza when migrating table schema to SQL Server. Where can I find a complete list? When getting down to brass tacks, I am specifically ...
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1answer
765 views

How to create an UTC index from a 'DATE' typed column with Oracle?

I have a Oracle database with columns of type 'DATE' which store timestamps in local time zone. I need to query this column with timestamps in UTC timezone. How do I create an index on the column ...
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1answer
400 views

Is it possible to fetch or update table data by table field type?

Is it possible to fetch or update table data by field type? If possible please tell me with a sample code.
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1answer
35 views

Is there a data type in MySQL similar to varchar(n) that not allow numbers or special characters in it?

Is there a data type in MySQL similar to varchar(n) that not allow numbers or special characters in it?
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1answer
74 views

how to update the value of a period contained inside a bigger range

I have a tsrange like '[2010-01-01 14:00, 2010-01-01 15:00]',20 And want to update the 20 value to 15 in a range inside that, like '[2010-01-01 14:10, 2010-01-01 14:30]',15 My expected outcome ...
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1answer
24 views

Datatype for different categories in a database

I have got the following categories for accounting and cash flow purposes: Equity Contribution Distribution Valuation Debt Issuance Payment Valuation Allowance Interest ...
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1answer
199 views

Spliting Datetime into 2 Columns for Restaurant Reservation Schema?

Using PostgreSQL. The primary driver of this is that while no reservation will exist without a date and time, a user can search for and monitor reservations using a time or date or both. With a ...
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1answer
367 views

Column of generic/variable type?

In SQL, I would like to create a table which can contain generic data types. This types can change from every row. The solution I could come up to is: CREATE TABLE TagValue ( tag VARCHAR(64), ...
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1answer
141 views

Changing TEXT to VARCHAR

In a MySQL database (InnoDB) we have a table containing roughly 60.000.000 rows. One of the columns is of type text. Currently the longest entry has length 360 (found using SELECT MAX(LENGTH(value)) ...
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2answers
5k views

In MySQL, how to manually edit values of a BLOB column in few tuples?

In MySQL, how to manually edit values of a BLOB column in few tuples? For convenience of manual curation of database like this, should the column be created as BLOB or TEXT, or something else at the ...
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1answer
58 views

Overwhelmed with Sensor Data - Excel to SQL fails

I'm managing a lot of sensor data and need to do charting, smoothing, stats over time on the data. Currently I import the data from flat files using VBA to do ETL into Excel. The format of the data ...
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1answer
103 views

Rich text: VARCHAR, TEXT or BLOB in MySQL

Question: In my web application (php/MySQL) I will be saving rich text. This may be anything from a couple words to several pages length essay. I’m sure I could get away with using VARCHAR, TEXT or ...
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1answer
40 views

Warehouse Database Design Question

Apologies if this has been answered previously but I have been unable to get a specific model to work. I have a database table that needs to store some very basic info for a reporting system. The ...
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1answer
61 views

How to create a “match result” data type?

I'm building a football match table which contains one column "match result", which should consist of data like "3-1","0-0"... I'm wondering what kind of data type is best appropriate for it, varchar ...
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1answer
41 views

Is there a data type I can use for RA & Dec in astronomy

I need to have fields in my database for the following: RA (hh:mm:ss.00) Dec (Degrees:arcseconds:arcminutes.00) I need to have the facility to search for a range within each field. Any ideas?
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0answers
108 views

Best practice for storing image order number in a database

I am designing a social networking website(mysql with InnoDB engine + php) where I need to store image sequence in a database. The table structure is as follows:- PicId (BIGINT, AUTO INCREMENT, PK) ...
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0answers
426 views

MS Access 365 When selecting Lookup Wizard, datatype is changed to Number

I want to create a relationship between my Contacts table & Ref_State table. Contacts table has field called State/Region which I want to make Data Type = Lookup Wizard Ref_State has fields ID ...
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5answers
125 views

Database with only text fields

I started working on an existing SQL Server Database System in which most of the fields are stored as text. Except some IDs all fields are varchar (phone numbers, zip codes, Dates, addresses, monetary ...
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3answers
2k views

Convert yymmdd to datetime using ssis derived column

Below are the strings representing date of birth (yymmdd). I want to convert it into datetime format and load into a database using ssis. How can I do it? In my derived column I have ...
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1answer
194 views

Mysterious inequality behavior when comparing date strings

Can someone explain this mysterious Postgres behavior? I'm performing the following queries at the psql command line. mydb=> select '20150526' > '2015-05-25'; -[ RECORD 1 ] ?column? | t ...
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1answer
28 views

PostgreSQL column for year

I want to save the year in a PostgreSQL database - just the year. How should I create this field? There is a lot of information out there how I can extract the year from a date field, but not on how I ...
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2answers
90 views

Query that was working on MySQL is not working on PostgreSQL

I had the following query (with bin_number being a string) which was working on MySQL 5.5: Postgres - was working on MySQL and doesn't work on PostgreSQL SELECT "menu_items".* FROM "menu_items" ...
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2answers
91 views

Adding a bool column; tracking untouched vs. false

[backstory] I have a simple database of our current Widget inventory. It averages just dozen columns across five or six tables, but has a huge number of records already. Some Widgets came with ...
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2answers
40 views

change column type from string to numeric

so I have a table with 5.2 million records. 3 columns in this table are for salaries. Those column are currently stored as string and I'd like to change the data type to numeric (I understood while ...
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2answers
92 views

Setting for default column type

Is there a setting in SQLServer 2008 and newer for default data type of date-time columns, i.e. datetime or datetime2? Actually more like something that would tell SQLServer to use datetime2 instead ...
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2answers
93 views

SQL Server BigInt vs Decimal

I need to choose a data type for SQL Server( BigInt vs Decimal) on the basis of performance and querying (10 digit number)
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1answer
152 views

12 hour format time in SQL datatype

I can convert time datatype to 12 hour format using convert etc. But is there any option to save the time in 12 hour format in SQL tables using any settings or property or any other methods?
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1answer
17k views

Float datatype with 2 digits after decimal point

In SQL server float datatype does not display leading zeros after decimal point declare @num as float set @num=5.20 select @num will dispaly only 5.2 But i want it to display as 5.20 After a ...
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2answers
152 views

looping through a table type variable

I have a function that has one parameter of a table type, i want to loop through all the fields and return the column that has a null or empty value. CREATE OR REPLACE FUNCTION ...
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2answers
73 views

Why is Oracle's number datatype so HUGE? and why do I seem to have no alternatives?

Oracle has a favorite numerical class called NUMBER. It is a 22 byte value that just seems ludicrous in an index. I have some values that would easily fit in a 6 byte integer and would therefore fit ...
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1answer
43 views

What kind of data type to use for numbering in the Harmonized System?

The harmonized system uses a numbering that shows the hierarchy between different items. Similar to bookkeeping ledger numbers. Here is an example: 01 LIVE ANIMALS 0103 swine, live 010310 Purebred ...
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5answers
412 views

define rating column in table?

Hi I am creating database for rating the items in my list but I want to ask what this if I have five stars rating how can I do it in database "rating" column should I use Int with check constraint or ...