All Things SQL - Page 2 of 4 - All Things Related To SQL, Databases & Cloud Based Solutions

SQL Substring – Selecting Specific Field Data

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We can write a SQL query using the substring function to select the exact pieces of information needed in a

SQL – Converting Strings to Upper & Lower-Case

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In order to convert character or string columns in SQL to UPPER or LOWER case we need to know the

SQL LENGTH – Finding Max & Min String Width

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We can use a combination of the MAX and MIN functions in conjunction with the SQL length function to get

SQL String Length – Finding Column Width

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To find the string length (or width) in a field we can use the sql length function. The specific syntax

SQL TRIM Functions – Remove Blanks & Whitespace

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Often times, data is not cleansed appropriately when pulling data from files or other database tables. As a result, this

SQL CAST & CONVERT Function – Modifying Data Types

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There are a few ways (depending on the database) where we can convert a column data type. The main two

SQL Concatenate – Combining Columns in a Table

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We can combine multiple columns together into one in SQL using concatenation. Many databases have their own versions of combining

SQL INSERT – Using SELECT Statement

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We can write standard insert queries using hard-coded values. Similarly, we can write inserts and instead use a SELECT query

SQL INSERT Statement – Inserting Table Records

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We are able to insert records into a database table using a SQL INSERT statement. Alternatively, we can utilize the

SQL UPDATE Statement – Modifying Table Records

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We can manipulate, modify or update records in a database table using a SQL UPDATE statement. Specifying a WHERE clause