How can I search a value in all columns of a table in SQL?

How can I search a value in all columns of a table in SQL?

You need to do it in two steps, first generate the sql like (assuming your table is named T in schema S: select concat(‘ SELECT * FROM t WHERE ”a” in (‘ , GROUP_CONCAT(COLUMN_NAME) , ‘)’) from INFORMATION_SCHEMA. columns where table_schema = ‘s’ and table_name = ‘t’ and DATA_TYPE IN (‘char’,’varchar’);

How do I get the table name from SYS columns?

Use this Query to search the Tables:

  1. SELECT AS ‘ColumnName’, AS ‘TableName’
  2. FROM sys.columns col.
  3. JOIN sys.tables tab ON col.object_id = tab.object_id.
  4. WHERE LIKE ‘%MyName%’
  5. ORDER BY TableName,ColumnName;

How do I find a specific column in SQL database?

You can query the database’s information_schema. columns table which holds the schema structure of all columns defined in your database. The result would give you the columns: TABLE_NAME , TABLE_CATALOG , DATA_TYPE and more properties for this database column.

How do I lookup a table in SQL?

The following SQL query attempts to create a lookup table in SQL for the main table Employee: CREATE TABLE Employee (EmpId int NOT NULL, name character varying NOT NULL, membership character varying NOT NULL ); CREATE TABLE links_type_lookup (EmpId int NOT NULL, membership character varying NOT NULL);

What is DB lookup?

Description. Searches a column of a database table for a value and returns the corresponding value from another column in the same row.

What is a lookup table in DBMS?

Database lookup table reads data from the specified database table. Then, lookup table will not search through the database table when the same key value is given again. Remember that Database lookup table allows to work with duplicate records (multiple records with the same key value).

What is meant by lookup table?

In computer science, a lookup table is an array that replaces runtime computation with a simpler array indexing operation. The savings in processing time can be significant, because retrieving a value from memory is often faster than carrying out an “expensive” computation or input/output operation.

How do lookup tables work?

A lookup table is an array of data that maps input values to output values, thereby approximating a mathematical function. Given a set of input values, a lookup operation retrieves the corresponding output values from the table. An interpolation is a process for estimating values that lie between known data points.

How do you create a lookup table?


  1. Click Product Manager > Lookup Tables > Lookup Table Console.
  2. Click the new icon.
  3. From the Select Type drop-down list, select Single String Key and click Select.
  4. Select the lookup table spec to use.
  5. Provide a name and other required details for the lookup table.
  6. Click Next.

How do you create a table to be used as a field lookup?

Create a lookup field in Design View

  1. Open the table in Design View.
  2. In the first available empty row, click a cell in the Field Name column, and then type a field name for the lookup field.
  3. Click in the Data Type column for that row, click the arrow and then, in the drop-down list, select Lookup Wizard.

Should we use lookup tables?

Lookup tables provide the essential function of helping you maintain data integrity in your database environment. For example, if you have users entering their gender into a data item, the table that contains the Gender item can reference a lookup table to verify that only the value M or F is used.

Do lookup tables need primary keys?

2 Answers. There should be a unique key for (car_idcar, item_list_iditem_list) , but it doesn’t necessarily have to be the primary key. This way, you ensure that you don’t create duplicate relationships between the same rows in the two tables.

What is the primary use of look up table?

A lookup table or lookup file holds static data and is used to look up a secondary value based on a primary value.

What is lookup table in data warehouse with example?

Lookup Table: The lookup table provides the detailed information about the attributes. For example, the lookup table for the Quarter attribute would include a list of all of the quarters available in the data warehouse.

How do I do a lookup table in Excel?

  1. In the Formula Bar, type =VLOOKUP().
  2. In the parentheses, enter your lookup value, followed by a comma.
  3. Enter your table array or lookup table, the range of data you want to search, and a comma: (H2,B3:F25,
  4. Enter column index number.
  5. Enter the range lookup value, either TRUE or FALSE.

How do you use lookup formula?

Excel LOOKUP Function

  1. Summary.
  2. Look up a value in a one-column range.
  3. A value in the result vector.
  4. =LOOKUP (lookup_value, lookup_vector, [result_vector])
  5. lookup_value – The value to search for.
  6. Version.

What is the difference between a lookup and a Vlookup?

The main difference between VLOOKUP and LOOKUP functions is the VLOOKUP is limited to vertical lookups only and the LOOKUP function has cross functionality which means that it can perform both vertical lookups and horizontal lookups.

How do you lookup multiple criteria in Excel?

7 Ways to lookup a value based on multiple criteria or conditions in Excel

  1. SUMPRODUCT. FORMULA : =SUMPRODUCT((B3:B10=D12)*(C3:C10=D13)*(D3:D10))
  2. SUM (ARRAY FORMULA) FORMULA : =SUM((B3:B10=D12)*(C3:C10=D13)*(D3:D10))
  3. SUMIFS. .
  5. INDEX-MATCH (Version 2) FORMULA :

How do you lookup a value in two criteria tables?

So, to lookup a value in a table with multiple criteria we will use INDEX-MATCH-INDEX formula. lookup_range: Its the range from which you want to retrieve value. Criteria1, Criteria2, Criteria N: These are the criteria you want to match in range1, range2 and Range N. You can have up to 270 criteria – range pairs.

Can you do a Vlookup with 2 criteria?

You can perform this for more than two criteria as long as the “helper” column has unique data in the rows, and it matches what you are searching for in the VLOOKUP formula. Concatenation is a great way to account for multiple-string search criteria.

Can you use index match with multiple criteria?

Normally, an INDEX MATCH formula is configured with MATCH set to look through a one-column range and provide a match based on given criteria. Without concatenating values in a helper column, or in the formula itself, there’s no way to supply more than one criteria.

Why does my index match not work?

If you believe that the data is present in the spreadsheet, but MATCH is unable to locate it, it may be because: The cell has unexpected characters or hidden spaces. The cell may not be formatted as a correct data type. For example, the cell has numerical values, but it may be formatted as Text.

How do I return multiple values in one cell?

To get multiple lookup values in a single cell, we need to create a function in VBA (similar to the VLOOKUP function) that checks each cell in a column and if the lookup value is found, adds it to the result.

How do I get a Vlookup to return multiple values in one cell?

Vlookup to return multiple values into one cell with a useful feature

  1. Select the data range that you want to combine one column data based on another column.
  2. Click Kutools > Merge & Split > Advanced Combine Rows, see screenshot:
  3. In the popped out Advanced Combine Rows dialog box:

How do I count multiple values in a cell in Excel?

Ways to count cells in a range of data

  1. Select the cell where you want the result to appear.
  2. On the Formulas tab, click More Functions, point to Statistical, and then click one of the following functions: COUNTA: To count cells that are not empty. COUNT: To count cells that contain numbers.
  3. Select the range of cells that you want, and then press RETURN.

How do I return multiple values in index match?

If you want to return more than one value, you have to use array formulas. Array formulas are designed to work with a series of cells, rather than a single cell. Enter the following formula into cell E2 and press Ctrl + Shift + Enter to convert it into an array formula.

How do I count multiple words in a column in Excel?

How to count the total number of words in a cell

  1. And then, you can copy the formula down to count words in other cells of column A:
  2. =IF(A2=””, 0, LEN(TRIM(A2))-LEN(SUBSTITUTE(A2,” “,””))+1)
  3. =(LEN(A2)-LEN(SUBSTITUTE(A2, “moon”,””)))/LEN(“moon”)

How do I do a Countif with multiple conditions?

If there is more than one range and criteria, you can use COUNTIFS function. It works same as COUNTIF, but is used with multiple criteria. The syntax of the COUNTIFS is: =COUNTIF(range 1, criteria1, range 2, criteria 2.. )

How can I search a value in all columns of a table in SQL?

How can I search a value in all columns of a table in SQL?

You need to do it in two steps, first generate the sql like (assuming your table is named T in schema S: select concat(‘ SELECT * FROM t WHERE ”a” in (‘ , GROUP_CONCAT(COLUMN_NAME) , ‘)’) from INFORMATION_SCHEMA. columns where table_schema = ‘s’ and table_name = ‘t’ and DATA_TYPE IN (‘char’,’varchar’);

How do I find the value of a column in SQL?


  1. SELECT column1, column2, FROM table_name;
  2. SELECT * FROM table_name;
  3. Example. SELECT CustomerName, City FROM Customers;
  4. Example. SELECT * FROM Customers;

How do you find a string in all columns of a table?


  1. stringToFind – this is the search string you are looking for.
  2. schema – this is the schema owner of the object.
  3. table – this is the table name you want to search, the procedure will search all char, nchar, ntext, nvarchar, text and varchar columns in the base table.

How do I find all tables in a column name?

1 Answer

  1. SELECT COL_NAME AS ‘Column_Name’, TAB_NAME AS ‘Table_Name’
  4. ORDER BY Table_Name, Column_Name;

Which SQL statement is used to add modify or drop columns in a database table?

The SQL ALTER TABLE statement is used to add, modify, or drop/delete columns in a table. The SQL ALTER TABLE statement is also used to rename a table.

How do you check if a value is present in a column in MySQL?

To test whether a row exists in a MySQL table or not, use exists condition. The exists condition can be used with subquery. It returns true when row exists in the table, otherwise false is returned. True is represented in the form of 1 and false is represented as 0.

How to search for values in all columns?

The standard way of storing multi-valued attributes is as multiple rows in another table, with a reference to the row they belong to in the primary table. If you do that, then you only have to search for the specific value in one column of the dependent table. SELECT t.*.

How to find a value in a column in SQL?

So trying to find a value in any column in your database requires you to build the query to look through each column you want to search using an OR operator between each column. Is there any way this can be dynamically generated? Solution Once again this is where T-SQL comes in handy along with the use of system tables or system views.

How to retrieve all columns from a table in SQL?

To retrieve all columns, use the wild card * (an asterisk). The FROM clause specifies one or more tables to be queried. Use a comma and space between table names when specifying multiple tables. The WHERE clause selects only the rows in which the specified column contains the specified value.

How to select data from table in SQL?

Here, column1, column2, are the field names of the table you want to select data from. If you want to select all the fields available in the table, use the following syntax: 120 Hanover Sq. The following SQL statement selects the “CustomerName” and “City” columns from the “Customers” table:

Is a query that retrieves rows from more than one table or view?

Explanation: An SQL join clause combines records from two or more tables in a database. It creates a set that can be saved as a table or used as it is.

How do I search for a column in a SQL Server database?

  1. SELECT. db_name() AS database_name,
  2. tables. name AS table_name, columns. name AS column_name,
  3. ‘Column’ AS object_type. FROM sys. tables.
  4. INNER JOIN sys. columns. ON tables. object_id = columns. object_id.
  5. WHERE columns. name LIKE ‘%BusinessEntityID%’;

How to search all columns of all tables in a database?

It accepts a search string as input parameter, goes and searches all char, varchar, nchar, nvarchar columns of all tables (only user created tables. System tables are excluded), owned by all users in the current database. Feel free to extend this procedure to search other datatypes.

How to search for column names in SQL Server?

COLUMNS WHERE TABLE_CATALOG = ‘AdventureWorks2014’ AND COLUMN_NAME = ‘addressline1’; This narrows down the search for column name in SQL Server to only find the exact matches like shown below: It goes without saying, but losing the Where clause entirely will return a list of all the columns and tables in the database:

How to search multiple columns with multiple values?

Forgot to follow with my solution: I needed to join 2 tables and search across the columns. They ****ed up and made the id of t1 a varchar, smh, and some of them had nulls so we needed to check for them lest our results were ****ed (this is why the selected answer wouldn’t work for me).

How to update column names in SQL Server?

For instance: will give you a script that will run a select * against all the tables in the system catalog, you could alter the string in the select clause to do your update, as long as you know the column name is the same on all the tables you wish to update, so your script would look something like:

How do you check if a column contains a value in MySQL?

It can contain single or multiple values like this: 1 or 2 or 1,2,3 or 2,12… I try to get all rows containing value 2. $query = “SELECT * FROM my_table WHERE categories LIKE ‘2’”; $rows = mysql_query($query); This returns row if column only has value 2 but not 1,2,3 or 2,12.

How do I select rows in a column in MySQL?

If you want to transpose only select row values as columns, you can add WHERE clause in your 1st select GROUP_CONCAT statement. If you want to filter rows in your final pivot table, you can add the WHERE clause in your SET statement.

How to get rows to columns in MySQL?

12 Answers. 1 select the columns of interest, i.e. y-values and x-values. 2 extend the base table with extra columns — one for each x-value. 3 group and aggregate the extended table — one group for each y-value. 4 (optional) prettify the aggregated table.

How to check for value in all columns in MySQL?

The grep will return entire rows (including the table name) where the value is present. It is not SQL and is not very useful if you want to process the output programmatically, but it is simple and quite fast.

How to retrieve data from specific rows in MySQL databases?

For instance, you can request the information from only the first three rows in the table. DISTINCT: Allows you to request information from only one row of identical rows. For instance, in a Login table, you can request loginName but specify no duplicate names, thus limiting the response to one record for each member.

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