Oracle: get detail table information
You can use SQL*Plus to provide the following details about a table: 1. Column Details 2. PRIMARY KEY 3. INDEXES 4. FOREIGN KEYS 5. CONSTRAINTS 6. ROWCOUNT 7. Other Tables That REFER to this Table 8....
View ArticlePrompt for variable in SQL Script
Simple tutorial on how to write a Oracle P-SQL script that asks user for a value in a prompt. /* -- this script will update MLP identity across all related tables in LIMS correctly -- -- when executing...
View ArticleExample SQL Script use Cursor
Here is a very very simple Oracle P-SQL script that uses a cursor to do some operation: SET SERVEROUTPUT ON DECLARE CURSOR curMLPList IS SELECT DISTINCT IDENTITY FROM MLP_HEADER WHERE ROWNUM < 10...
View ArticleDrop All Tables in a schema (Oracle)
This script would create a drop table script for all the tables -- Drop All Tables in a schema: -- Drop_Tables.sql - Creates script to drop all tables and views from schema -- Use: script reads table...
View ArticleOracle SQL: Escape in LIKE clause
The underscore in oracle SQL, when it’s used in LIKE clause represent a one character wild card. For example: like ‘V_KAA’ (returns VaKAA, VbKAA) But you want to find something like V_KAAA (including a...
View ArticleSQLite: system date time now
-- display current system date time select (date_time('now')); -- to insert with system date time insert into table (date_created) values (date_time('now'));
View ArticleSQLite: select certain # of records
A column name can be any of the names defined in the CREATE TABLE statement or one of the following special identifiers: “ROWID”, “OID”, or “_ROWID_”. These special identifiers all describe the unique...
View ArticleAndroid: SQLite select data using SQL statement returning cursor
Use the .rawQuery function to use a SQL statement to retrieve data into cursor. public Cursor fetchAllDineoutHistoryFormatDate(){ String sSelect = "SELECT " + K_ROWID + ", " + K_TITLE + ", " + K_DATE...
View ArticleFind Duplicate value in a field (Oracle table)
If you want to find the duplicate values in a specific field in an Oracle table, use the following SQL query: SELECT FIELD, COUNT(FIELD) from TABLE GROUP BY FIELD HAVING COUNT(FIELD) > 1;
View ArticleORACLE: Show Statistic Updates
The following Oracle SQL command allows you to see the statistics information, grouping by the last analyzed date (the is the name of schema you need to substitute into the SQL query: select...
View ArticleOralce PL/SQL: Prompt for choice in execution
In Oracle PL/SQL, you can put in your script that would give the user a choice to either go on or quit. The following example gives you a prompt then a user choice of Y or N. Based on the user choice Y...
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