trevor1940

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Hi<br />
<br />
I have a PostgreSQL table with empty cells or cells containing '' two single quotes<br />
<br />
so when i do <br />
<br />

<pre><code id="code-10-29144499-1">SELECT DISTINCT col_a,col_b,col_c FROM my_table</code></pre>
<br />
I get multiple rows because col_b has rows with nothing and rows with ''<br />
<br />
FYI:<br />
It was ingested from different sources 1 had col_z the other didn't <br />
<br />
Any suggestions how to clear the cells with ''
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Hi

I have a PostgreSQL table with empty cells or cells containing '' two single quotes

so when i do 

(CODE)

I get multiple rows because col_b has rows with nothing and rows with ''

FYI:
It was ingested from different sources 1 had col_z the other didn't 

Any suggestions how to clear the cells with ''

PostgreSQL: cleaning cells

PostgreSQL is an object-relational database management system with an emphasis on extensibility and standards-compliance. As a database server, its primary function is to store data securely, supporting best practices, and to allow for retrieval at the request of other software applications. PostgreSQL implements the majority of the SQL2011 standard, is ACID-compliant and transactional using multiversion concurrency control (MVCC), and handles complex SQL queries using many indexing methods that are not available in other databases. It is cross-platform and runs on many operating systems including Linux, FreeBSD, OS X, Solaris, and Microsoft Windows.

PostgreSQL

SQL (Structured Query Language) is designed to be used in conjunction with relational database products as of a means of working with sets of data. SQL consists of data definition, data manipulation, and procedural elements. Its scope includes data insert, query, update and delete, schema creation and modification, and data access control.