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Function Reference
1010data Insights Platform offers a rich set of functions that may be used in value expressions when creating computed columns and in selection expressions when performing row selections.
SQL compatibility functions
SQL compatibility functions are functions that treat null values as SQL nulls.
sql_eqlin(X;Y)
Returns a boolean value indicating if X is found in Y. This function has SQL-compatible null handling.

Function Reference
1010data Insights Platform offers a rich set of functions that may be used in value expressions when creating computed columns and in selection expressions when performing row selections.
- All 1010data Functions
  1010data provides a whole range of functions that can provide information and act on your data.
- Time/Date functions
  The time/date functions are vector functions that operate on columns containing time-related data and return specific information about the date/time for each row.
- Group functions (g_functions)
  Group functions, or g_functions, are used to perform operations, such as summarizations, on rows that have the same values in a set of given columns.
- Math functions
  Math functions are vector functions that perform mathematical operations on one or more columns and return a column of results based on the operation.
- Matrix functions
- Categorization functions
  Categorization functions are vector functions that organize data and determine logical groupings. These functions can be used for conditionalizing results and/or bucketing value ranges.
- String functions
  String functions are vector functions that manipulate vectors of strings to provide information about a string or substring, concatenate and split strings, or transform strings based on specified criteria.
- List functions
  List functions are scalar functions that return lists, subsets of lists, and combinations of lists, among other functionality. Lists, along with packages, are compound scalar data types that facilitate programmatic interaction with scalar data values and variables.
- Data-handling functions
  Data-handling functions are vector functions that return a hash value based on an input column or columns.
- Row functions
  Row functions are vector functions that return computational outputs for row inputs, as opposed to column outputs. Row inputs are defined as a space- or comma-separated list of column names.
- SQL compatibility functions
  SQL compatibility functions are functions that treat null values as SQL nulls.
  - sql_and(X;Y)
    Returns a boolean value indicating whether both X and Y are true. This function has SQL-compatible null handling.
  - sql_bet(X;Y;Z)
    Returns a boolean value indicating if X is between Y and Z in ascending order. This function has SQL-compatible null handling.
  - sql_e(X;Y)
    Returns a boolean value indicating if X is equal to Y. This function has SQL-compatible null handling.
  - sql_g(X;Y)
    Returns a boolean value indicating if X is greater than Y. This function has SQL-compatible null handling.
  - sql_ge(X;Y)
    Returns a boolean value indicating if X is greater than or equal to Y. This function has SQL-compatible null handling.
  - sql_l(X;Y)
    Returns a boolean value indicating if X is less than Y. This function has SQL-compatible null handling.
  - sql_le(X;Y)
    Returns a boolean value indicating if X is less than or equal to Y. This function has SQL-compatible null handling.
  - sql_ne(X;Y)
    Returns a boolean value indicating if X is not equal to Y. This function has SQL-compatible null handling.
  - sql_eqlin(X;Y)
    Returns a boolean value indicating if X is found in Y. This function has SQL-compatible null handling.
  - sql_not(X)
    Returns the logical negation of the argument X. This function has SQL-compatible null handling.
  - sql_or(X;Y)
    Returns a boolean value indicating whether X or Y are true. This function has SQL-compatible null handling.
- Financial functions
- System functions
  System functions are special functions in 1010data that return information about users, tables, and other system objects.
- Object functions
  The object functions can be used to check the existence, type, and accessibility of objects such as folders, tables, and queries on the 1010data Insights Platform.
- Miscellaneous functions
  This category of functions contains special functions that don't neatly fit into other categories of functions.

`sql_eqlin(X;Y)`

Returns a boolean value indicating if X is found in Y. This function has SQL-compatible null handling.

Syntax

sql_eqlin(X;Y)

Input

Argument	Type	Description
`X`	any simple type	The name of a column of values to compare to all of the values in `Y` or in a list.
`Y`	any simple type	The name of a column of values or a list in which to search for `X`.

Return Value

sql_eqlin(X;Y) returns a boolean value of 1 if X is found in Y and 0 if X is not found in Y.

The data type of the result is integer.

If X or Y is N/A (null), the result is also N/A.

Example

In this example, there are several ways of showing how sql_eqlin(X;Y) works.

The values in colx are compared to a list of values to determine if the values in colx are in the list. The results are in the sqleqlin_list column.

The values in colx are compared to the values in coly to determine if the colx values are found in coly values. The results are in the sqleqlin_coly column.

<table cols="colx,coly">
  899,3;
  38,38;
  21,770;
  10,20;
  2700,10;
  986,986;
  ,;
  ,9;
  66,;
</table>
<willbe name="sqleqlin_list" label="SQL Null" value="sql_eqlin(colx;38 9 986 95 10 800 21)"/>
<willbe name="sqleqlin_coly" label="SQL Null" value="sql_eqlin(colx;coly)"/>

Note: There isn't a similar function to sql_eqlin(X;Y) to use for a one-to-one comparison of null value handling.